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Finding the Fourth Proportional to 266,336.24, 399,505.88 and 88,842.72

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Solution

The fourth proportional to 266,336.24, 399,505.88 and 88,842.72 is: 133,264.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,336.24 : 399,505.88 = 88,842.72 : x
  2. Step 2: Convert to fraction form
    266,336.24/399,505.88 = 88,842.72/x
  3. Step 3: Cross multiply
    266,336.24x = 399,505.88 × 88,842.72
  4. Step 4: Simplify right side
    266,336.24x = 35,493,189,035.19
  5. Step 5: Solve for x
    x = 35,493,189,035.19/266,336.24
  6. Step 6: Final answer
    x = 133,264.59

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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.