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Finding the Fourth Proportional to 266,575.92, 399,884.48 and 89,083.54

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Solution

The fourth proportional to 266,575.92, 399,884.48 and 89,083.54 is: 133,632.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,575.92 : 399,884.48 = 89,083.54 : x
  2. Step 2: Convert to fraction form
    266,575.92/399,884.48 = 89,083.54/x
  3. Step 3: Cross multiply
    266,575.92x = 399,884.48 × 89,083.54
  4. Step 4: Simplify right side
    266,575.92x = 35,623,125,069.46
  5. Step 5: Solve for x
    x = 35,623,125,069.46/266,575.92
  6. Step 6: Final answer
    x = 133,632.19

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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.