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Finding the Fourth Proportional to 132,392.60, 198,260.85 and 84,934.70

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Solution

The fourth proportional to 132,392.60, 198,260.85 and 84,934.70 is: 127,191.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,392.60 : 198,260.85 = 84,934.70 : x
  2. Step 2: Convert to fraction form
    132,392.60/198,260.85 = 84,934.70/x
  3. Step 3: Cross multiply
    132,392.60x = 198,260.85 × 84,934.70
  4. Step 4: Simplify right side
    132,392.60x = 16,839,225,816.50
  5. Step 5: Solve for x
    x = 16,839,225,816.50/132,392.60
  6. Step 6: Final answer
    x = 127,191.59

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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.