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Finding the Fourth Proportional to 69,288.70, 103,673.56 and 49,344.29

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Solution

The fourth proportional to 69,288.70, 103,673.56 and 49,344.29 is: 73,831.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,288.70 : 103,673.56 = 49,344.29 : x
  2. Step 2: Convert to fraction form
    69,288.70/103,673.56 = 49,344.29/x
  3. Step 3: Cross multiply
    69,288.70x = 103,673.56 × 49,344.29
  4. Step 4: Simplify right side
    69,288.70x = 5,115,698,209.97
  5. Step 5: Solve for x
    x = 5,115,698,209.97/69,288.70
  6. Step 6: Final answer
    x = 73,831.64

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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.