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Finding the Fourth Proportional to 69,221.39, 103,831.94 and 22,474.13

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Solution

The fourth proportional to 69,221.39, 103,831.94 and 22,474.13 is: 33,711.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,221.39 : 103,831.94 = 22,474.13 : x
  2. Step 2: Convert to fraction form
    69,221.39/103,831.94 = 22,474.13/x
  3. Step 3: Cross multiply
    69,221.39x = 103,831.94 × 22,474.13
  4. Step 4: Simplify right side
    69,221.39x = 2,333,532,054.74
  5. Step 5: Solve for x
    x = 2,333,532,054.74/69,221.39
  6. Step 6: Final answer
    x = 33,711.14

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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.