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Finding the Fourth Proportional to 437,470.10, 656,205.15 and 156,950.90

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Solution

The fourth proportional to 437,470.10, 656,205.15 and 156,950.90 is: 235,426.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,470.10 : 656,205.15 = 156,950.90 : x
  2. Step 2: Convert to fraction form
    437,470.10/656,205.15 = 156,950.90/x
  3. Step 3: Cross multiply
    437,470.10x = 656,205.15 × 156,950.90
  4. Step 4: Simplify right side
    437,470.10x = 102,991,988,877.14
  5. Step 5: Solve for x
    x = 102,991,988,877.14/437,470.10
  6. Step 6: Final answer
    x = 235,426.35

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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.