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Finding the Fourth Proportional to 124,481.16, 186,600.24 and 49,578.84

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Solution

The fourth proportional to 124,481.16, 186,600.24 and 49,578.84 is: 74,319.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,481.16 : 186,600.24 = 49,578.84 : x
  2. Step 2: Convert to fraction form
    124,481.16/186,600.24 = 49,578.84/x
  3. Step 3: Cross multiply
    124,481.16x = 186,600.24 × 49,578.84
  4. Step 4: Simplify right side
    124,481.16x = 9,251,423,442.92
  5. Step 5: Solve for x
    x = 9,251,423,442.92/124,481.16
  6. Step 6: Final answer
    x = 74,319.87

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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.