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Finding the Fourth Proportional to 121,327.10, 181,990.65 and 95,957.90

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Solution

The fourth proportional to 121,327.10, 181,990.65 and 95,957.90 is: 143,936.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,327.10 : 181,990.65 = 95,957.90 : x
  2. Step 2: Convert to fraction form
    121,327.10/181,990.65 = 95,957.90/x
  3. Step 3: Cross multiply
    121,327.10x = 181,990.65 × 95,957.90
  4. Step 4: Simplify right side
    121,327.10x = 17,463,440,593.64
  5. Step 5: Solve for x
    x = 17,463,440,593.64/121,327.10
  6. Step 6: Final answer
    x = 143,936.85

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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.