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Finding the Fourth Proportional to 181,356.30, 272,034.45 and 114,579.90

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Solution

The fourth proportional to 181,356.30, 272,034.45 and 114,579.90 is: 171,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,356.30 : 272,034.45 = 114,579.90 : x
  2. Step 2: Convert to fraction form
    181,356.30/272,034.45 = 114,579.90/x
  3. Step 3: Cross multiply
    181,356.30x = 272,034.45 × 114,579.90
  4. Step 4: Simplify right side
    181,356.30x = 31,169,680,077.56
  5. Step 5: Solve for x
    x = 31,169,680,077.56/181,356.30
  6. Step 6: Final answer
    x = 171,869.85

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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.