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Finding the Fourth Proportional to 73,139.47, 100,934.46 and 41,313.10

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Solution

The fourth proportional to 73,139.47, 100,934.46 and 41,313.10 is: 57,013.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,139.47 : 100,934.46 = 41,313.10 : x
  2. Step 2: Convert to fraction form
    73,139.47/100,934.46 = 41,313.10/x
  3. Step 3: Cross multiply
    73,139.47x = 100,934.46 × 41,313.10
  4. Step 4: Simplify right side
    73,139.47x = 4,169,915,439.43
  5. Step 5: Solve for x
    x = 4,169,915,439.43/73,139.47
  6. Step 6: Final answer
    x = 57,013.20

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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.