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Finding the Fourth Proportional to 109,379.13, 150,943.29 and 59,078.13

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Solution

The fourth proportional to 109,379.13, 150,943.29 and 59,078.13 is: 81,527.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,379.13 : 150,943.29 = 59,078.13 : x
  2. Step 2: Convert to fraction form
    109,379.13/150,943.29 = 59,078.13/x
  3. Step 3: Cross multiply
    109,379.13x = 150,943.29 × 59,078.13
  4. Step 4: Simplify right side
    109,379.13x = 8,917,447,309.25
  5. Step 5: Solve for x
    x = 8,917,447,309.25/109,379.13
  6. Step 6: Final answer
    x = 81,527.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.