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Finding the Fourth Proportional to 266,328.73, 399,494.59 and 88,835.25

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Solution

The fourth proportional to 266,328.73, 399,494.59 and 88,835.25 is: 133,253.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,328.73 : 399,494.59 = 88,835.25 : x
  2. Step 2: Convert to fraction form
    266,328.73/399,494.59 = 88,835.25/x
  3. Step 3: Cross multiply
    266,328.73x = 399,494.59 × 88,835.25
  4. Step 4: Simplify right side
    266,328.73x = 35,489,203,052.31
  5. Step 5: Solve for x
    x = 35,489,203,052.31/266,328.73
  6. Step 6: Final answer
    x = 133,253.38

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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.