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Finding the Fourth Proportional to 88,758.71, 133,169.16 and 55,439.77

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Solution

The fourth proportional to 88,758.71, 133,169.16 and 55,439.77 is: 83,179.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,758.71 : 133,169.16 = 55,439.77 : x
  2. Step 2: Convert to fraction form
    88,758.71/133,169.16 = 55,439.77/x
  3. Step 3: Cross multiply
    88,758.71x = 133,169.16 × 55,439.77
  4. Step 4: Simplify right side
    88,758.71x = 7,382,867,351.62
  5. Step 5: Solve for x
    x = 7,382,867,351.62/88,758.71
  6. Step 6: Final answer
    x = 83,179.07

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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.