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Finding the Fourth Proportional to 151,008.65, 226,687.95 and 81,024.65

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Solution

The fourth proportional to 151,008.65, 226,687.95 and 81,024.65 is: 121,630.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,008.65 : 226,687.95 = 81,024.65 : x
  2. Step 2: Convert to fraction form
    151,008.65/226,687.95 = 81,024.65/x
  3. Step 3: Cross multiply
    151,008.65x = 226,687.95 × 81,024.65
  4. Step 4: Simplify right side
    151,008.65x = 18,367,310,674.53
  5. Step 5: Solve for x
    x = 18,367,310,674.53/151,008.65
  6. Step 6: Final answer
    x = 121,630.86

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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.