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Finding the Fourth Proportional to 73,329.27, 109,971.90 and 38,249.79

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Solution

The fourth proportional to 73,329.27, 109,971.90 and 38,249.79 is: 57,363.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,329.27 : 109,971.90 = 38,249.79 : x
  2. Step 2: Convert to fraction form
    73,329.27/109,971.90 = 38,249.79/x
  3. Step 3: Cross multiply
    73,329.27x = 109,971.90 × 38,249.79
  4. Step 4: Simplify right side
    73,329.27x = 4,206,402,080.90
  5. Step 5: Solve for x
    x = 4,206,402,080.90/73,329.27
  6. Step 6: Final answer
    x = 57,363.21

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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.