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Finding the Fourth Proportional to 341,781.90, 512,672.85 and 92,463.90

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Solution

The fourth proportional to 341,781.90, 512,672.85 and 92,463.90 is: 138,695.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,781.90 : 512,672.85 = 92,463.90 : x
  2. Step 2: Convert to fraction form
    341,781.90/512,672.85 = 92,463.90/x
  3. Step 3: Cross multiply
    341,781.90x = 512,672.85 × 92,463.90
  4. Step 4: Simplify right side
    341,781.90x = 47,403,731,135.12
  5. Step 5: Solve for x
    x = 47,403,731,135.12/341,781.90
  6. Step 6: Final answer
    x = 138,695.85

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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.