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Finding the Fourth Proportional to 92,135.30, 138,212.82 and 25,575.71

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Solution

The fourth proportional to 92,135.30, 138,212.82 and 25,575.71 is: 38,366.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,135.30 : 138,212.82 = 25,575.71 : x
  2. Step 2: Convert to fraction form
    92,135.30/138,212.82 = 25,575.71/x
  3. Step 3: Cross multiply
    92,135.30x = 138,212.82 × 25,575.71
  4. Step 4: Simplify right side
    92,135.30x = 3,534,891,002.60
  5. Step 5: Solve for x
    x = 3,534,891,002.60/92,135.30
  6. Step 6: Final answer
    x = 38,366.30

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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.