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Finding the Fourth Proportional to 252,220.16, 348,067.68 and 137,498.88

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Solution

The fourth proportional to 252,220.16, 348,067.68 and 137,498.88 is: 189,750.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,220.16 : 348,067.68 = 137,498.88 : x
  2. Step 2: Convert to fraction form
    252,220.16/348,067.68 = 137,498.88/x
  3. Step 3: Cross multiply
    252,220.16x = 348,067.68 × 137,498.88
  4. Step 4: Simplify right side
    252,220.16x = 47,858,916,164.20
  5. Step 5: Solve for x
    x = 47,858,916,164.20/252,220.16
  6. Step 6: Final answer
    x = 189,750.56

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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.