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Finding the Fourth Proportional to 92,274.64, 138,398.82 and 29,086.56

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Solution

The fourth proportional to 92,274.64, 138,398.82 and 29,086.56 is: 43,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,274.64 : 138,398.82 = 29,086.56 : x
  2. Step 2: Convert to fraction form
    92,274.64/138,398.82 = 29,086.56/x
  3. Step 3: Cross multiply
    92,274.64x = 138,398.82 × 29,086.56
  4. Step 4: Simplify right side
    92,274.64x = 4,025,545,581.86
  5. Step 5: Solve for x
    x = 4,025,545,581.86/92,274.64
  6. Step 6: Final answer
    x = 43,625.70

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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.