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Finding the Fourth Proportional to 172,983.62, 238,717.28 and 93,495.62

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Solution

The fourth proportional to 172,983.62, 238,717.28 and 93,495.62 is: 129,023.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,983.62 : 238,717.28 = 93,495.62 : x
  2. Step 2: Convert to fraction form
    172,983.62/238,717.28 = 93,495.62/x
  3. Step 3: Cross multiply
    172,983.62x = 238,717.28 × 93,495.62
  4. Step 4: Simplify right side
    172,983.62x = 22,319,020,098.31
  5. Step 5: Solve for x
    x = 22,319,020,098.31/172,983.62
  6. Step 6: Final answer
    x = 129,023.89

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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.