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Finding the Fourth Proportional to 123,763.42, 170,793.85 and 67,174.80

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Solution

The fourth proportional to 123,763.42, 170,793.85 and 67,174.80 is: 92,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,763.42 : 170,793.85 = 67,174.80 : x
  2. Step 2: Convert to fraction form
    123,763.42/170,793.85 = 67,174.80/x
  3. Step 3: Cross multiply
    123,763.42x = 170,793.85 × 67,174.80
  4. Step 4: Simplify right side
    123,763.42x = 11,473,042,074.50
  5. Step 5: Solve for x
    x = 11,473,042,074.50/123,763.42
  6. Step 6: Final answer
    x = 92,701.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.