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Finding the Fourth Proportional to 273,040.20, 409,560.30 and 83,500.20

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Solution

The fourth proportional to 273,040.20, 409,560.30 and 83,500.20 is: 125,250.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,040.20 : 409,560.30 = 83,500.20 : x
  2. Step 2: Convert to fraction form
    273,040.20/409,560.30 = 83,500.20/x
  3. Step 3: Cross multiply
    273,040.20x = 409,560.30 × 83,500.20
  4. Step 4: Simplify right side
    273,040.20x = 34,198,366,962.06
  5. Step 5: Solve for x
    x = 34,198,366,962.06/273,040.20
  6. Step 6: Final answer
    x = 125,250.30

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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.