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Finding the Fourth Proportional to 92,663.04, 138,993.18 and 29,487

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Solution

The fourth proportional to 92,663.04, 138,993.18 and 29,487 is: 44,230.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,663.04 : 138,993.18 = 29,487 : x
  2. Step 2: Convert to fraction form
    92,663.04/138,993.18 = 29,487/x
  3. Step 3: Cross multiply
    92,663.04x = 138,993.18 × 29,487
  4. Step 4: Simplify right side
    92,663.04x = 4,098,491,898.66
  5. Step 5: Solve for x
    x = 4,098,491,898.66/92,663.04
  6. Step 6: Final answer
    x = 44,230.06

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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.