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Finding the Fourth Proportional to 181,299.32, 271,855.52 and 81,373.86

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Solution

The fourth proportional to 181,299.32, 271,855.52 and 81,373.86 is: 122,018.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,299.32 : 271,855.52 = 81,373.86 : x
  2. Step 2: Convert to fraction form
    181,299.32/271,855.52 = 81,373.86/x
  3. Step 3: Cross multiply
    181,299.32x = 271,855.52 × 81,373.86
  4. Step 4: Simplify right side
    181,299.32x = 22,121,933,024.71
  5. Step 5: Solve for x
    x = 22,121,933,024.71/181,299.32
  6. Step 6: Final answer
    x = 122,018.84

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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.