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Finding the Fourth Proportional to 192,030.80, 288,046.20 and 107,704.40

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Solution

The fourth proportional to 192,030.80, 288,046.20 and 107,704.40 is: 161,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,030.80 : 288,046.20 = 107,704.40 : x
  2. Step 2: Convert to fraction form
    192,030.80/288,046.20 = 107,704.40/x
  3. Step 3: Cross multiply
    192,030.80x = 288,046.20 × 107,704.40
  4. Step 4: Simplify right side
    192,030.80x = 31,023,843,143.28
  5. Step 5: Solve for x
    x = 31,023,843,143.28/192,030.80
  6. Step 6: Final answer
    x = 161,556.60

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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.