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Finding the Fourth Proportional to 109,050.70, 150,463.08 and 66,593.74

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Solution

The fourth proportional to 109,050.70, 150,463.08 and 66,593.74 is: 91,882.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,050.70 : 150,463.08 = 66,593.74 : x
  2. Step 2: Convert to fraction form
    109,050.70/150,463.08 = 66,593.74/x
  3. Step 3: Cross multiply
    109,050.70x = 150,463.08 × 66,593.74
  4. Step 4: Simplify right side
    109,050.70x = 10,019,899,229.12
  5. Step 5: Solve for x
    x = 10,019,899,229.12/109,050.70
  6. Step 6: Final answer
    x = 91,882.94

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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.