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Finding the Fourth Proportional to 273,028.20, 409,469.40 and 83,488.20

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Solution

The fourth proportional to 273,028.20, 409,469.40 and 83,488.20 is: 125,210.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,028.20 : 409,469.40 = 83,488.20 : x
  2. Step 2: Convert to fraction form
    273,028.20/409,469.40 = 83,488.20/x
  3. Step 3: Cross multiply
    273,028.20x = 409,469.40 × 83,488.20
  4. Step 4: Simplify right side
    273,028.20x = 34,185,863,161.08
  5. Step 5: Solve for x
    x = 34,185,863,161.08/273,028.20
  6. Step 6: Final answer
    x = 125,210.01

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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.