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Finding the Fourth Proportional to 91,015.92, 125,550.96 and 53,282.88

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Solution

The fourth proportional to 91,015.92, 125,550.96 and 53,282.88 is: 73,500.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,015.92 : 125,550.96 = 53,282.88 : x
  2. Step 2: Convert to fraction form
    91,015.92/125,550.96 = 53,282.88/x
  3. Step 3: Cross multiply
    91,015.92x = 125,550.96 × 53,282.88
  4. Step 4: Simplify right side
    91,015.92x = 6,689,716,735.56
  5. Step 5: Solve for x
    x = 6,689,716,735.56/91,015.92
  6. Step 6: Final answer
    x = 73,500.51

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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.