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Finding the Fourth Proportional to 437,129.91, 655,305.86 and 170,829.86

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Solution

The fourth proportional to 437,129.91, 655,305.86 and 170,829.86 is: 256,092.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,129.91 : 655,305.86 = 170,829.86 : x
  2. Step 2: Convert to fraction form
    437,129.91/655,305.86 = 170,829.86/x
  3. Step 3: Cross multiply
    437,129.91x = 655,305.86 × 170,829.86
  4. Step 4: Simplify right side
    437,129.91x = 111,945,805,471.53
  5. Step 5: Solve for x
    x = 111,945,805,471.53/437,129.91
  6. Step 6: Final answer
    x = 256,092.76

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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.