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Finding the Fourth Proportional to 89,652.62, 123,715.72 and 49,358.73

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Solution

The fourth proportional to 89,652.62, 123,715.72 and 49,358.73 is: 68,112.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,652.62 : 123,715.72 = 49,358.73 : x
  2. Step 2: Convert to fraction form
    89,652.62/123,715.72 = 49,358.73/x
  3. Step 3: Cross multiply
    89,652.62x = 123,715.72 × 49,358.73
  4. Step 4: Simplify right side
    89,652.62x = 6,106,451,345.87
  5. Step 5: Solve for x
    x = 6,106,451,345.87/89,652.62
  6. Step 6: Final answer
    x = 68,112.36

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1.5x scale

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.