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Finding the Fourth Proportional to 172,890.66, 238,593.35 and 96,409.02

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Solution

The fourth proportional to 172,890.66, 238,593.35 and 96,409.02 is: 133,046.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,890.66 : 238,593.35 = 96,409.02 : x
  2. Step 2: Convert to fraction form
    172,890.66/238,593.35 = 96,409.02/x
  3. Step 3: Cross multiply
    172,890.66x = 238,593.35 × 96,409.02
  4. Step 4: Simplify right side
    172,890.66x = 23,002,550,569.97
  5. Step 5: Solve for x
    x = 23,002,550,569.97/172,890.66
  6. Step 6: Final answer
    x = 133,046.81

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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.