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Finding the Fourth Proportional to 219,224.40, 329,182.20 and 125,912.40

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Solution

The fourth proportional to 219,224.40, 329,182.20 and 125,912.40 is: 189,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,224.40 : 329,182.20 = 125,912.40 : x
  2. Step 2: Convert to fraction form
    219,224.40/329,182.20 = 125,912.40/x
  3. Step 3: Cross multiply
    219,224.40x = 329,182.20 × 125,912.40
  4. Step 4: Simplify right side
    219,224.40x = 41,448,120,839.28
  5. Step 5: Solve for x
    x = 41,448,120,839.28/219,224.40
  6. Step 6: Final answer
    x = 189,067.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.