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Finding the Fourth Proportional to 312,763.97, 469,182.33 and 113,178.35

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Solution

The fourth proportional to 312,763.97, 469,182.33 and 113,178.35 is: 169,780.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,763.97 : 469,182.33 = 113,178.35 : x
  2. Step 2: Convert to fraction form
    312,763.97/469,182.33 = 113,178.35/x
  3. Step 3: Cross multiply
    312,763.97x = 469,182.33 × 113,178.35
  4. Step 4: Simplify right side
    312,763.97x = 53,101,279,612.64
  5. Step 5: Solve for x
    x = 53,101,279,612.64/312,763.97
  6. Step 6: Final answer
    x = 169,780.68

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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.