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Finding the Fourth Proportional to 263,713.56, 363,926.46 and 142,854.85

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Solution

The fourth proportional to 263,713.56, 363,926.46 and 142,854.85 is: 197,140.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,713.56 : 363,926.46 = 142,854.85 : x
  2. Step 2: Convert to fraction form
    263,713.56/363,926.46 = 142,854.85/x
  3. Step 3: Cross multiply
    263,713.56x = 363,926.46 × 142,854.85
  4. Step 4: Simplify right side
    263,713.56x = 51,988,659,854.33
  5. Step 5: Solve for x
    x = 51,988,659,854.33/263,713.56
  6. Step 6: Final answer
    x = 197,140.64

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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.