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Finding the Fourth Proportional to 437,473.10, 656,209.65 and 156,953.90

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Solution

The fourth proportional to 437,473.10, 656,209.65 and 156,953.90 is: 235,430.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,473.10 : 656,209.65 = 156,953.90 : x
  2. Step 2: Convert to fraction form
    437,473.10/656,209.65 = 156,953.90/x
  3. Step 3: Cross multiply
    437,473.10x = 656,209.65 × 156,953.90
  4. Step 4: Simplify right side
    437,473.10x = 102,994,663,785.14
  5. Step 5: Solve for x
    x = 102,994,663,785.14/437,473.10
  6. Step 6: Final answer
    x = 235,430.85

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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.