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Finding the Fourth Proportional to 186,200.98, 279,082.67 and 86,149.85

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Solution

The fourth proportional to 186,200.98, 279,082.67 and 86,149.85 is: 129,123.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,200.98 : 279,082.67 = 86,149.85 : x
  2. Step 2: Convert to fraction form
    186,200.98/279,082.67 = 86,149.85/x
  3. Step 3: Cross multiply
    186,200.98x = 279,082.67 × 86,149.85
  4. Step 4: Simplify right side
    186,200.98x = 24,042,928,331.94
  5. Step 5: Solve for x
    x = 24,042,928,331.94/186,200.98
  6. Step 6: Final answer
    x = 129,123.53

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1.5x scale

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.