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Finding the Fourth Proportional to 60,778.62, 91,199.52 and 45,983.16

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Solution

The fourth proportional to 60,778.62, 91,199.52 and 45,983.16 is: 68,998.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,778.62 : 91,199.52 = 45,983.16 : x
  2. Step 2: Convert to fraction form
    60,778.62/91,199.52 = 45,983.16/x
  3. Step 3: Cross multiply
    60,778.62x = 91,199.52 × 45,983.16
  4. Step 4: Simplify right side
    60,778.62x = 4,193,642,120.08
  5. Step 5: Solve for x
    x = 4,193,642,120.08/60,778.62
  6. Step 6: Final answer
    x = 68,998.64

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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.