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Finding the Fourth Proportional to 266,561.58, 399,863.03 and 89,069.22

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Solution

The fourth proportional to 266,561.58, 399,863.03 and 89,069.22 is: 133,610.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,561.58 : 399,863.03 = 89,069.22 : x
  2. Step 2: Convert to fraction form
    266,561.58/399,863.03 = 89,069.22/x
  3. Step 3: Cross multiply
    266,561.58x = 399,863.03 × 89,069.22
  4. Step 4: Simplify right side
    266,561.58x = 35,615,487,743.59
  5. Step 5: Solve for x
    x = 35,615,487,743.59/266,561.58
  6. Step 6: Final answer
    x = 133,610.73

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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.