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Finding the Fourth Proportional to 220,264.80, 303,969.20 and 124,769.12

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Solution

The fourth proportional to 220,264.80, 303,969.20 and 124,769.12 is: 172,183.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,264.80 : 303,969.20 = 124,769.12 : x
  2. Step 2: Convert to fraction form
    220,264.80/303,969.20 = 124,769.12/x
  3. Step 3: Cross multiply
    220,264.80x = 303,969.20 × 124,769.12
  4. Step 4: Simplify right side
    220,264.80x = 37,925,969,591.10
  5. Step 5: Solve for x
    x = 37,925,969,591.10/220,264.80
  6. Step 6: Final answer
    x = 172,183.52

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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.