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Finding the Fourth Proportional to 92,174.33, 138,315.16 and 38,862.97

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Solution

The fourth proportional to 92,174.33, 138,315.16 and 38,862.97 is: 58,317.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,174.33 : 138,315.16 = 38,862.97 : x
  2. Step 2: Convert to fraction form
    92,174.33/138,315.16 = 38,862.97/x
  3. Step 3: Cross multiply
    92,174.33x = 138,315.16 × 38,862.97
  4. Step 4: Simplify right side
    92,174.33x = 5,375,337,913.63
  5. Step 5: Solve for x
    x = 5,375,337,913.63/92,174.33
  6. Step 6: Final answer
    x = 58,317.08

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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.