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Finding the Fourth Proportional to 224,391.25, 309,659.93 and 123,789.25

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Solution

The fourth proportional to 224,391.25, 309,659.93 and 123,789.25 is: 170,829.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,391.25 : 309,659.93 = 123,789.25 : x
  2. Step 2: Convert to fraction form
    224,391.25/309,659.93 = 123,789.25/x
  3. Step 3: Cross multiply
    224,391.25x = 309,659.93 × 123,789.25
  4. Step 4: Simplify right side
    224,391.25x = 38,332,570,489.75
  5. Step 5: Solve for x
    x = 38,332,570,489.75/224,391.25
  6. Step 6: Final answer
    x = 170,829.17

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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.