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Finding the Fourth Proportional to 181,422.61, 272,134.79 and 55,063.95

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Solution

The fourth proportional to 181,422.61, 272,134.79 and 55,063.95 is: 82,596.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,422.61 : 272,134.79 = 55,063.95 : x
  2. Step 2: Convert to fraction form
    181,422.61/272,134.79 = 55,063.95/x
  3. Step 3: Cross multiply
    181,422.61x = 272,134.79 × 55,063.95
  4. Step 4: Simplify right side
    181,422.61x = 14,984,816,909.25
  5. Step 5: Solve for x
    x = 14,984,816,909.25/181,422.61
  6. Step 6: Final answer
    x = 82,596.19

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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.