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Finding the Fourth Proportional to 192,045.80, 288,068.70 and 132,948.20

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Solution

The fourth proportional to 192,045.80, 288,068.70 and 132,948.20 is: 199,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,045.80 : 288,068.70 = 132,948.20 : x
  2. Step 2: Convert to fraction form
    192,045.80/288,068.70 = 132,948.20/x
  3. Step 3: Cross multiply
    192,045.80x = 288,068.70 × 132,948.20
  4. Step 4: Simplify right side
    192,045.80x = 38,298,215,141.34
  5. Step 5: Solve for x
    x = 38,298,215,141.34/192,045.80
  6. Step 6: Final answer
    x = 199,422.30

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1.5x scale

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.