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Finding the Fourth Proportional to 75,193, 103,766.36 and 44,979.60

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Solution

The fourth proportional to 75,193, 103,766.36 and 44,979.60 is: 62,071.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,193 : 103,766.36 = 44,979.60 : x
  2. Step 2: Convert to fraction form
    75,193/103,766.36 = 44,979.60/x
  3. Step 3: Cross multiply
    75,193x = 103,766.36 × 44,979.60
  4. Step 4: Simplify right side
    75,193x = 4,667,369,366.26
  5. Step 5: Solve for x
    x = 4,667,369,366.26/75,193
  6. Step 6: Final answer
    x = 62,071.86

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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.