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Finding the Fourth Proportional to 92,371.55, 138,557.61 and 25,811.24

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Solution

The fourth proportional to 92,371.55, 138,557.61 and 25,811.24 is: 38,716.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,371.55 : 138,557.61 = 25,811.24 : x
  2. Step 2: Convert to fraction form
    92,371.55/138,557.61 = 25,811.24/x
  3. Step 3: Cross multiply
    92,371.55x = 138,557.61 × 25,811.24
  4. Step 4: Simplify right side
    92,371.55x = 3,576,343,032.75
  5. Step 5: Solve for x
    x = 3,576,343,032.75/92,371.55
  6. Step 6: Final answer
    x = 38,716.93

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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.