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Finding the Fourth Proportional to 272,366.20, 408,549.30 and 82,826.20

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Solution

The fourth proportional to 272,366.20, 408,549.30 and 82,826.20 is: 124,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,366.20 : 408,549.30 = 82,826.20 : x
  2. Step 2: Convert to fraction form
    272,366.20/408,549.30 = 82,826.20/x
  3. Step 3: Cross multiply
    272,366.20x = 408,549.30 × 82,826.20
  4. Step 4: Simplify right side
    272,366.20x = 33,838,586,031.66
  5. Step 5: Solve for x
    x = 33,838,586,031.66/272,366.20
  6. Step 6: Final answer
    x = 124,239.30

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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.