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Finding the Fourth Proportional to 167,908.40, 251,862.60 and 129,854.60

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Solution

The fourth proportional to 167,908.40, 251,862.60 and 129,854.60 is: 194,781.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,908.40 : 251,862.60 = 129,854.60 : x
  2. Step 2: Convert to fraction form
    167,908.40/251,862.60 = 129,854.60/x
  3. Step 3: Cross multiply
    167,908.40x = 251,862.60 × 129,854.60
  4. Step 4: Simplify right side
    167,908.40x = 32,705,517,177.96
  5. Step 5: Solve for x
    x = 32,705,517,177.96/167,908.40
  6. Step 6: Final answer
    x = 194,781.90

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1.5x scale

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.