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Finding the Fourth Proportional to 73,391.16, 101,310.78 and 49,550.12

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Solution

The fourth proportional to 73,391.16, 101,310.78 and 49,550.12 is: 68,400.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,391.16 : 101,310.78 = 49,550.12 : x
  2. Step 2: Convert to fraction form
    73,391.16/101,310.78 = 49,550.12/x
  3. Step 3: Cross multiply
    73,391.16x = 101,310.78 × 49,550.12
  4. Step 4: Simplify right side
    73,391.16x = 5,019,961,306.29
  5. Step 5: Solve for x
    x = 5,019,961,306.29/73,391.16
  6. Step 6: Final answer
    x = 68,400.08

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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.