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Finding the Fourth Proportional to 69,169.05, 94,831.07 and 67,908.11

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Solution

The fourth proportional to 69,169.05, 94,831.07 and 67,908.11 is: 93,102.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,169.05 : 94,831.07 = 67,908.11 : x
  2. Step 2: Convert to fraction form
    69,169.05/94,831.07 = 67,908.11/x
  3. Step 3: Cross multiply
    69,169.05x = 94,831.07 × 67,908.11
  4. Step 4: Simplify right side
    69,169.05x = 6,439,797,919.28
  5. Step 5: Solve for x
    x = 6,439,797,919.28/69,169.05
  6. Step 6: Final answer
    x = 93,102.30

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.