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Finding the Fourth Proportional to 92,042.46, 138,048.30 and 25,489.32

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Solution

The fourth proportional to 92,042.46, 138,048.30 and 25,489.32 is: 38,229.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,042.46 : 138,048.30 = 25,489.32 : x
  2. Step 2: Convert to fraction form
    92,042.46/138,048.30 = 25,489.32/x
  3. Step 3: Cross multiply
    92,042.46x = 138,048.30 × 25,489.32
  4. Step 4: Simplify right side
    92,042.46x = 3,518,757,294.16
  5. Step 5: Solve for x
    x = 3,518,757,294.16/92,042.46
  6. Step 6: Final answer
    x = 38,229.72

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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.