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Finding the Fourth Proportional to 192,053.80, 288,080.70 and 132,956.20

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Solution

The fourth proportional to 192,053.80, 288,080.70 and 132,956.20 is: 199,434.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,053.80 : 288,080.70 = 132,956.20 : x
  2. Step 2: Convert to fraction form
    192,053.80/288,080.70 = 132,956.20/x
  3. Step 3: Cross multiply
    192,053.80x = 288,080.70 × 132,956.20
  4. Step 4: Simplify right side
    192,053.80x = 38,302,115,165.34
  5. Step 5: Solve for x
    x = 38,302,115,165.34/192,053.80
  6. Step 6: Final answer
    x = 199,434.30

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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.