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Finding the Fourth Proportional to 81,452,208,546.45, 122,178,312,819.67 and 81,452,208,546.45

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Solution

The fourth proportional to 81,452,208,546.45, 122,178,312,819.67 and 81,452,208,546.45 is: 122,178,312,819.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,452,208,546.45 : 122,178,312,819.67 = 81,452,208,546.45 : x
  2. Step 2: Convert to fraction form
    81,452,208,546.45/122,178,312,819.67 = 81,452,208,546.45/x
  3. Step 3: Cross multiply
    81,452,208,546.45x = 122,178,312,819.67 × 81,452,208,546.45
  4. Step 4: Simplify right side
    81,452,208,546.45x = 9,951,693,415,641,165,856,768
  5. Step 5: Solve for x
    x = 9,951,693,415,641,165,856,768/81,452,208,546.45
  6. Step 6: Final answer
    x = 122,178,312,819.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.