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Finding the Fourth Proportional to 220,217.08, 303,914.28 and 123,422.08

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Solution

The fourth proportional to 220,217.08, 303,914.28 and 123,422.08 is: 170,330.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,217.08 : 303,914.28 = 123,422.08 : x
  2. Step 2: Convert to fraction form
    220,217.08/303,914.28 = 123,422.08/x
  3. Step 3: Cross multiply
    220,217.08x = 303,914.28 × 123,422.08
  4. Step 4: Simplify right side
    220,217.08x = 37,509,732,579.30
  5. Step 5: Solve for x
    x = 37,509,732,579.30/220,217.08
  6. Step 6: Final answer
    x = 170,330.71

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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.