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Finding the Fourth Proportional to 172,695.17, 238,256.13 and 104,663.07

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Solution

The fourth proportional to 172,695.17, 238,256.13 and 104,663.07 is: 144,396.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,695.17 : 238,256.13 = 104,663.07 : x
  2. Step 2: Convert to fraction form
    172,695.17/238,256.13 = 104,663.07/x
  3. Step 3: Cross multiply
    172,695.17x = 238,256.13 × 104,663.07
  4. Step 4: Simplify right side
    172,695.17x = 24,936,618,404.61
  5. Step 5: Solve for x
    x = 24,936,618,404.61/172,695.17
  6. Step 6: Final answer
    x = 144,396.73

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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.