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Finding the Fourth Proportional to 405,859.92, 608,691.24 and 169,073.52

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Solution

The fourth proportional to 405,859.92, 608,691.24 and 169,073.52 is: 253,569.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,859.92 : 608,691.24 = 169,073.52 : x
  2. Step 2: Convert to fraction form
    405,859.92/608,691.24 = 169,073.52/x
  3. Step 3: Cross multiply
    405,859.92x = 608,691.24 × 169,073.52
  4. Step 4: Simplify right side
    405,859.92x = 102,913,570,539.97
  5. Step 5: Solve for x
    x = 102,913,570,539.97/405,859.92
  6. Step 6: Final answer
    x = 253,569.19

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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.