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Finding the Fourth Proportional to 92,490.95, 138,737.03 and 29,309.73

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Solution

The fourth proportional to 92,490.95, 138,737.03 and 29,309.73 is: 43,964.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,490.95 : 138,737.03 = 29,309.73 : x
  2. Step 2: Convert to fraction form
    92,490.95/138,737.03 = 29,309.73/x
  3. Step 3: Cross multiply
    92,490.95x = 138,737.03 × 29,309.73
  4. Step 4: Simplify right side
    92,490.95x = 4,066,344,743.75
  5. Step 5: Solve for x
    x = 4,066,344,743.75/92,490.95
  6. Step 6: Final answer
    x = 43,964.79

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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.