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Finding the Fourth Proportional to 92,532, 138,787.68 and 25,974.72

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Solution

The fourth proportional to 92,532, 138,787.68 and 25,974.72 is: 38,959.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,532 : 138,787.68 = 25,974.72 : x
  2. Step 2: Convert to fraction form
    92,532/138,787.68 = 25,974.72/x
  3. Step 3: Cross multiply
    92,532x = 138,787.68 × 25,974.72
  4. Step 4: Simplify right side
    92,532x = 3,604,971,127.45
  5. Step 5: Solve for x
    x = 3,604,971,127.45/92,532
  6. Step 6: Final answer
    x = 38,959.18

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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.