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Finding the Fourth Proportional to 266,101.74, 399,216.15 and 88,610.28

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Solution

The fourth proportional to 266,101.74, 399,216.15 and 88,610.28 is: 132,936.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,101.74 : 399,216.15 = 88,610.28 : x
  2. Step 2: Convert to fraction form
    266,101.74/399,216.15 = 88,610.28/x
  3. Step 3: Cross multiply
    266,101.74x = 399,216.15 × 88,610.28
  4. Step 4: Simplify right side
    266,101.74x = 35,374,654,832.02
  5. Step 5: Solve for x
    x = 35,374,654,832.02/266,101.74
  6. Step 6: Final answer
    x = 132,936.58

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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.