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Finding the Fourth Proportional to 105,670,819.20, 158,506,228.80 and 105,670,819.20

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Solution

The fourth proportional to 105,670,819.20, 158,506,228.80 and 105,670,819.20 is: 158,506,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,670,819.20 : 158,506,228.80 = 105,670,819.20 : x
  2. Step 2: Convert to fraction form
    105,670,819.20/158,506,228.80 = 105,670,819.20/x
  3. Step 3: Cross multiply
    105,670,819.20x = 158,506,228.80 × 105,670,819.20
  4. Step 4: Simplify right side
    105,670,819.20x = 16,749,483,045,598,634
  5. Step 5: Solve for x
    x = 16,749,483,045,598,634/105,670,819.20
  6. Step 6: Final answer
    x = 158,506,228.80

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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.