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Finding the Fourth Proportional to 220,158.80, 329,363.40 and 190,901.60

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Solution

The fourth proportional to 220,158.80, 329,363.40 and 190,901.60 is: 285,593.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,158.80 : 329,363.40 = 190,901.60 : x
  2. Step 2: Convert to fraction form
    220,158.80/329,363.40 = 190,901.60/x
  3. Step 3: Cross multiply
    220,158.80x = 329,363.40 × 190,901.60
  4. Step 4: Simplify right side
    220,158.80x = 62,876,000,041.44
  5. Step 5: Solve for x
    x = 62,876,000,041.44/220,158.80
  6. Step 6: Final answer
    x = 285,593.85

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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.