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Finding the Fourth Proportional to 437,555.10, 656,332.65 and 157,035.90

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Solution

The fourth proportional to 437,555.10, 656,332.65 and 157,035.90 is: 235,553.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,555.10 : 656,332.65 = 157,035.90 : x
  2. Step 2: Convert to fraction form
    437,555.10/656,332.65 = 157,035.90/x
  3. Step 3: Cross multiply
    437,555.10x = 656,332.65 × 157,035.90
  4. Step 4: Simplify right side
    437,555.10x = 103,067,788,392.14
  5. Step 5: Solve for x
    x = 103,067,788,392.14/437,555.10
  6. Step 6: Final answer
    x = 235,553.85

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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.