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Finding the Fourth Proportional to 89,873.54, 124,025.13 and 49,589.81

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Solution

The fourth proportional to 89,873.54, 124,025.13 and 49,589.81 is: 68,433.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,873.54 : 124,025.13 = 49,589.81 : x
  2. Step 2: Convert to fraction form
    89,873.54/124,025.13 = 49,589.81/x
  3. Step 3: Cross multiply
    89,873.54x = 124,025.13 × 49,589.81
  4. Step 4: Simplify right side
    89,873.54x = 6,150,382,631.93
  5. Step 5: Solve for x
    x = 6,150,382,631.93/89,873.54
  6. Step 6: Final answer
    x = 68,433.74

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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.