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Finding the Fourth Proportional to 192,706.20, 288,692.10 and 103,930.20

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Solution

The fourth proportional to 192,706.20, 288,692.10 and 103,930.20 is: 155,697.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,706.20 : 288,692.10 = 103,930.20 : x
  2. Step 2: Convert to fraction form
    192,706.20/288,692.10 = 103,930.20/x
  3. Step 3: Cross multiply
    192,706.20x = 288,692.10 × 103,930.20
  4. Step 4: Simplify right side
    192,706.20x = 30,003,827,691.42
  5. Step 5: Solve for x
    x = 30,003,827,691.42/192,706.20
  6. Step 6: Final answer
    x = 155,697.26

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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.