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Finding the Fourth Proportional to 169,572.74, 234,013.31 and 93,098.93

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Solution

The fourth proportional to 169,572.74, 234,013.31 and 93,098.93 is: 128,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,572.74 : 234,013.31 = 93,098.93 : x
  2. Step 2: Convert to fraction form
    169,572.74/234,013.31 = 93,098.93/x
  3. Step 3: Cross multiply
    169,572.74x = 234,013.31 × 93,098.93
  4. Step 4: Simplify right side
    169,572.74x = 21,786,387,131.20
  5. Step 5: Solve for x
    x = 21,786,387,131.20/169,572.74
  6. Step 6: Final answer
    x = 128,478.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.