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Finding the Fourth Proportional to 192,176.70, 288,265.05 and 109,232.70

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Solution

The fourth proportional to 192,176.70, 288,265.05 and 109,232.70 is: 163,849.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,176.70 : 288,265.05 = 109,232.70 : x
  2. Step 2: Convert to fraction form
    192,176.70/288,265.05 = 109,232.70/x
  3. Step 3: Cross multiply
    192,176.70x = 288,265.05 × 109,232.70
  4. Step 4: Simplify right side
    192,176.70x = 31,487,969,727.14
  5. Step 5: Solve for x
    x = 31,487,969,727.14/192,176.70
  6. Step 6: Final answer
    x = 163,849.05

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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.