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Finding the Fourth Proportional to 192,648.20, 288,626.70 and 165,000.20

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Solution

The fourth proportional to 192,648.20, 288,626.70 and 165,000.20 is: 247,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,648.20 : 288,626.70 = 165,000.20 : x
  2. Step 2: Convert to fraction form
    192,648.20/288,626.70 = 165,000.20/x
  3. Step 3: Cross multiply
    192,648.20x = 288,626.70 × 165,000.20
  4. Step 4: Simplify right side
    192,648.20x = 47,623,463,225.34
  5. Step 5: Solve for x
    x = 47,623,463,225.34/192,648.20
  6. Step 6: Final answer
    x = 247,204.30

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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.