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Finding the Fourth Proportional to 192,168.55, 288,134.54 and 132,269.72

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Solution

The fourth proportional to 192,168.55, 288,134.54 and 132,269.72 is: 198,323.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,168.55 : 288,134.54 = 132,269.72 : x
  2. Step 2: Convert to fraction form
    192,168.55/288,134.54 = 132,269.72/x
  3. Step 3: Cross multiply
    192,168.55x = 288,134.54 × 132,269.72
  4. Step 4: Simplify right side
    192,168.55x = 38,111,474,266.78
  5. Step 5: Solve for x
    x = 38,111,474,266.78/192,168.55
  6. Step 6: Final answer
    x = 198,323.17

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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.