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Finding the Fourth Proportional to 437,508.10, 656,262.15 and 156,988.90

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Solution

The fourth proportional to 437,508.10, 656,262.15 and 156,988.90 is: 235,483.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,508.10 : 656,262.15 = 156,988.90 : x
  2. Step 2: Convert to fraction form
    437,508.10/656,262.15 = 156,988.90/x
  3. Step 3: Cross multiply
    437,508.10x = 656,262.15 × 156,988.90
  4. Step 4: Simplify right side
    437,508.10x = 103,025,873,040.14
  5. Step 5: Solve for x
    x = 103,025,873,040.14/437,508.10
  6. Step 6: Final answer
    x = 235,483.35

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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.