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Finding the Fourth Proportional to 194,712.80, 292,069.20 and 132,504.80

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Solution

The fourth proportional to 194,712.80, 292,069.20 and 132,504.80 is: 198,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,712.80 : 292,069.20 = 132,504.80 : x
  2. Step 2: Convert to fraction form
    194,712.80/292,069.20 = 132,504.80/x
  3. Step 3: Cross multiply
    194,712.80x = 292,069.20 × 132,504.80
  4. Step 4: Simplify right side
    194,712.80x = 38,700,570,932.16
  5. Step 5: Solve for x
    x = 38,700,570,932.16/194,712.80
  6. Step 6: Final answer
    x = 198,757.20

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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.