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Finding the Fourth Proportional to 145,067.92, 217,591.59 and 38,449.51

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Solution

The fourth proportional to 145,067.92, 217,591.59 and 38,449.51 is: 57,671.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,067.92 : 217,591.59 = 38,449.51 : x
  2. Step 2: Convert to fraction form
    145,067.92/217,591.59 = 38,449.51/x
  3. Step 3: Cross multiply
    145,067.92x = 217,591.59 × 38,449.51
  4. Step 4: Simplify right side
    145,067.92x = 8,366,290,015.62
  5. Step 5: Solve for x
    x = 8,366,290,015.62/145,067.92
  6. Step 6: Final answer
    x = 57,671.54

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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.