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Finding the Fourth Proportional to 89,332.55, 133,947.79 and 36,698.75

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Solution

The fourth proportional to 89,332.55, 133,947.79 and 36,698.75 is: 55,027.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,332.55 : 133,947.79 = 36,698.75 : x
  2. Step 2: Convert to fraction form
    89,332.55/133,947.79 = 36,698.75/x
  3. Step 3: Cross multiply
    89,332.55x = 133,947.79 × 36,698.75
  4. Step 4: Simplify right side
    89,332.55x = 4,915,716,458.26
  5. Step 5: Solve for x
    x = 4,915,716,458.26/89,332.55
  6. Step 6: Final answer
    x = 55,027.16

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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.