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Finding the Fourth Proportional to 220,759.68, 304,623.36 and 125,241.60

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Solution

The fourth proportional to 220,759.68, 304,623.36 and 125,241.60 is: 172,819.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,759.68 : 304,623.36 = 125,241.60 : x
  2. Step 2: Convert to fraction form
    220,759.68/304,623.36 = 125,241.60/x
  3. Step 3: Cross multiply
    220,759.68x = 304,623.36 × 125,241.60
  4. Step 4: Simplify right side
    220,759.68x = 38,151,517,003.78
  5. Step 5: Solve for x
    x = 38,151,517,003.78/220,759.68
  6. Step 6: Final answer
    x = 172,819.23

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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.