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Finding the Fourth Proportional to 132,114.40, 198,171.60 and 129,927.40

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Solution

The fourth proportional to 132,114.40, 198,171.60 and 129,927.40 is: 194,891.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,114.40 : 198,171.60 = 129,927.40 : x
  2. Step 2: Convert to fraction form
    132,114.40/198,171.60 = 129,927.40/x
  3. Step 3: Cross multiply
    132,114.40x = 198,171.60 × 129,927.40
  4. Step 4: Simplify right side
    132,114.40x = 25,747,920,741.84
  5. Step 5: Solve for x
    x = 25,747,920,741.84/132,114.40
  6. Step 6: Final answer
    x = 194,891.10

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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.