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Finding the Fourth Proportional to 220,174.20, 303,847.20 and 124,678.80

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Solution

The fourth proportional to 220,174.20, 303,847.20 and 124,678.80 is: 172,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,174.20 : 303,847.20 = 124,678.80 : x
  2. Step 2: Convert to fraction form
    220,174.20/303,847.20 = 124,678.80/x
  3. Step 3: Cross multiply
    220,174.20x = 303,847.20 × 124,678.80
  4. Step 4: Simplify right side
    220,174.20x = 37,883,304,279.36
  5. Step 5: Solve for x
    x = 37,883,304,279.36/220,174.20
  6. Step 6: Final answer
    x = 172,060.60

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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.