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Finding the Fourth Proportional to 75,195, 103,769.10 and 44,981.60

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Solution

The fourth proportional to 75,195, 103,769.10 and 44,981.60 is: 62,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,195 : 103,769.10 = 44,981.60 : x
  2. Step 2: Convert to fraction form
    75,195/103,769.10 = 44,981.60/x
  3. Step 3: Cross multiply
    75,195x = 103,769.10 × 44,981.60
  4. Step 4: Simplify right side
    75,195x = 4,667,699,629.71
  5. Step 5: Solve for x
    x = 4,667,699,629.71/75,195
  6. Step 6: Final answer
    x = 62,074.60

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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.