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Finding the Fourth Proportional to 79,473.97, 109,628.45 and 49,614.13

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Solution

The fourth proportional to 79,473.97, 109,628.45 and 49,614.13 is: 68,439.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,473.97 : 109,628.45 = 49,614.13 : x
  2. Step 2: Convert to fraction form
    79,473.97/109,628.45 = 49,614.13/x
  3. Step 3: Cross multiply
    79,473.97x = 109,628.45 × 49,614.13
  4. Step 4: Simplify right side
    79,473.97x = 5,439,119,621.86
  5. Step 5: Solve for x
    x = 5,439,119,621.86/79,473.97
  6. Step 6: Final answer
    x = 68,439.01

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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.