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Finding the Fourth Proportional to 192,031.80, 288,177.30 and 113,062.20

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Solution

The fourth proportional to 192,031.80, 288,177.30 and 113,062.20 is: 169,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,031.80 : 288,177.30 = 113,062.20 : x
  2. Step 2: Convert to fraction form
    192,031.80/288,177.30 = 113,062.20/x
  3. Step 3: Cross multiply
    192,031.80x = 288,177.30 × 113,062.20
  4. Step 4: Simplify right side
    192,031.80x = 32,581,959,528.06
  5. Step 5: Solve for x
    x = 32,581,959,528.06/192,031.80
  6. Step 6: Final answer
    x = 169,669.60

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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.