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Finding the Fourth Proportional to 181,299.16, 271,855.30 and 81,373.68

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Solution

The fourth proportional to 181,299.16, 271,855.30 and 81,373.68 is: 122,018.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,299.16 : 271,855.30 = 81,373.68 : x
  2. Step 2: Convert to fraction form
    181,299.16/271,855.30 = 81,373.68/x
  3. Step 3: Cross multiply
    181,299.16x = 271,855.30 × 81,373.68
  4. Step 4: Simplify right side
    181,299.16x = 22,121,866,188.50
  5. Step 5: Solve for x
    x = 22,121,866,188.50/181,299.16
  6. Step 6: Final answer
    x = 122,018.58

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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.