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Finding the Fourth Proportional to 220,447.68, 304,241.60 and 124,944.12

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Solution

The fourth proportional to 220,447.68, 304,241.60 and 124,944.12 is: 172,436.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,447.68 : 304,241.60 = 124,944.12 : x
  2. Step 2: Convert to fraction form
    220,447.68/304,241.60 = 124,944.12/x
  3. Step 3: Cross multiply
    220,447.68x = 304,241.60 × 124,944.12
  4. Step 4: Simplify right side
    220,447.68x = 38,013,198,979.39
  5. Step 5: Solve for x
    x = 38,013,198,979.39/220,447.68
  6. Step 6: Final answer
    x = 172,436.38

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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.