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Finding the Fourth Proportional to 181,052.80, 271,473.94 and 121,149.72

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Solution

The fourth proportional to 181,052.80, 271,473.94 and 121,149.72 is: 181,654.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,052.80 : 271,473.94 = 121,149.72 : x
  2. Step 2: Convert to fraction form
    181,052.80/271,473.94 = 121,149.72/x
  3. Step 3: Cross multiply
    181,052.80x = 271,473.94 × 121,149.72
  4. Step 4: Simplify right side
    181,052.80x = 32,888,991,818.30
  5. Step 5: Solve for x
    x = 32,888,991,818.30/181,052.80
  6. Step 6: Final answer
    x = 181,654.15

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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.