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Finding the Fourth Proportional to 92,487.34, 138,748.32 and 29,304.88

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Solution

The fourth proportional to 92,487.34, 138,748.32 and 29,304.88 is: 43,962.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,487.34 : 138,748.32 = 29,304.88 : x
  2. Step 2: Convert to fraction form
    92,487.34/138,748.32 = 29,304.88/x
  3. Step 3: Cross multiply
    92,487.34x = 138,748.32 × 29,304.88
  4. Step 4: Simplify right side
    92,487.34x = 4,066,002,867.80
  5. Step 5: Solve for x
    x = 4,066,002,867.80/92,487.34
  6. Step 6: Final answer
    x = 43,962.80

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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.