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Finding the Fourth Proportional to 266,617.14, 399,842.58 and 89,082.75

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Solution

The fourth proportional to 266,617.14, 399,842.58 and 89,082.75 is: 133,596.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,617.14 : 399,842.58 = 89,082.75 : x
  2. Step 2: Convert to fraction form
    266,617.14/399,842.58 = 89,082.75/x
  3. Step 3: Cross multiply
    266,617.14x = 399,842.58 × 89,082.75
  4. Step 4: Simplify right side
    266,617.14x = 35,619,076,593.50
  5. Step 5: Solve for x
    x = 35,619,076,593.50/266,617.14
  6. Step 6: Final answer
    x = 133,596.35

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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.