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Finding the Fourth Proportional to 266,181.84, 399,187.08 and 88,641.18

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Solution

The fourth proportional to 266,181.84, 399,187.08 and 88,641.18 is: 132,933.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,181.84 : 399,187.08 = 88,641.18 : x
  2. Step 2: Convert to fraction form
    266,181.84/399,187.08 = 88,641.18/x
  3. Step 3: Cross multiply
    266,181.84x = 399,187.08 × 88,641.18
  4. Step 4: Simplify right side
    266,181.84x = 35,384,413,811.95
  5. Step 5: Solve for x
    x = 35,384,413,811.95/266,181.84
  6. Step 6: Final answer
    x = 132,933.24

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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.