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Finding the Fourth Proportional to 73,863.67, 110,831.64 and 45,776.20

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Solution

The fourth proportional to 73,863.67, 110,831.64 and 45,776.20 is: 68,686.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,863.67 : 110,831.64 = 45,776.20 : x
  2. Step 2: Convert to fraction form
    73,863.67/110,831.64 = 45,776.20/x
  3. Step 3: Cross multiply
    73,863.67x = 110,831.64 × 45,776.20
  4. Step 4: Simplify right side
    73,863.67x = 5,073,451,318.97
  5. Step 5: Solve for x
    x = 5,073,451,318.97/73,863.67
  6. Step 6: Final answer
    x = 68,686.69

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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.