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Finding the Fourth Proportional to 162,711.70, 244,067.55 and 83,979.70

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Solution

The fourth proportional to 162,711.70, 244,067.55 and 83,979.70 is: 125,969.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,711.70 : 244,067.55 = 83,979.70 : x
  2. Step 2: Convert to fraction form
    162,711.70/244,067.55 = 83,979.70/x
  3. Step 3: Cross multiply
    162,711.70x = 244,067.55 × 83,979.70
  4. Step 4: Simplify right side
    162,711.70x = 20,496,719,628.74
  5. Step 5: Solve for x
    x = 20,496,719,628.74/162,711.70
  6. Step 6: Final answer
    x = 125,969.55

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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.