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Finding the Fourth Proportional to 92,635.56, 138,938.82 and 29,447.40

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Solution

The fourth proportional to 92,635.56, 138,938.82 and 29,447.40 is: 44,166.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,635.56 : 138,938.82 = 29,447.40 : x
  2. Step 2: Convert to fraction form
    92,635.56/138,938.82 = 29,447.40/x
  3. Step 3: Cross multiply
    92,635.56x = 138,938.82 × 29,447.40
  4. Step 4: Simplify right side
    92,635.56x = 4,091,387,008.07
  5. Step 5: Solve for x
    x = 4,091,387,008.07/92,635.56
  6. Step 6: Final answer
    x = 44,166.48

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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.