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Finding the Fourth Proportional to 88,367.71, 121,943.79 and 48,081.64

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Solution

The fourth proportional to 88,367.71, 121,943.79 and 48,081.64 is: 66,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,367.71 : 121,943.79 = 48,081.64 : x
  2. Step 2: Convert to fraction form
    88,367.71/121,943.79 = 48,081.64/x
  3. Step 3: Cross multiply
    88,367.71x = 121,943.79 × 48,081.64
  4. Step 4: Simplify right side
    88,367.71x = 5,863,257,411.02
  5. Step 5: Solve for x
    x = 5,863,257,411.02/88,367.71
  6. Step 6: Final answer
    x = 66,350.68

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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.