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Finding the Fourth Proportional to 121,612.68, 167,871.47 and 95,704.02

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Solution

The fourth proportional to 121,612.68, 167,871.47 and 95,704.02 is: 132,107.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,612.68 : 167,871.47 = 95,704.02 : x
  2. Step 2: Convert to fraction form
    121,612.68/167,871.47 = 95,704.02/x
  3. Step 3: Cross multiply
    121,612.68x = 167,871.47 × 95,704.02
  4. Step 4: Simplify right side
    121,612.68x = 16,065,974,043.79
  5. Step 5: Solve for x
    x = 16,065,974,043.79/121,612.68
  6. Step 6: Final answer
    x = 132,107.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.