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Finding the Fourth Proportional to 92,173.83, 138,314.42 and 38,862.47

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Solution

The fourth proportional to 92,173.83, 138,314.42 and 38,862.47 is: 58,316.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,173.83 : 138,314.42 = 38,862.47 : x
  2. Step 2: Convert to fraction form
    92,173.83/138,314.42 = 38,862.47/x
  3. Step 3: Cross multiply
    92,173.83x = 138,314.42 × 38,862.47
  4. Step 4: Simplify right side
    92,173.83x = 5,375,239,111.93
  5. Step 5: Solve for x
    x = 5,375,239,111.93/92,173.83
  6. Step 6: Final answer
    x = 58,316.33

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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.