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Finding the Fourth Proportional to 100,593.90, 138,831.65 and 60,329.81

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Solution

The fourth proportional to 100,593.90, 138,831.65 and 60,329.81 is: 83,262.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,593.90 : 138,831.65 = 60,329.81 : x
  2. Step 2: Convert to fraction form
    100,593.90/138,831.65 = 60,329.81/x
  3. Step 3: Cross multiply
    100,593.90x = 138,831.65 × 60,329.81
  4. Step 4: Simplify right side
    100,593.90x = 8,375,686,591.30
  5. Step 5: Solve for x
    x = 8,375,686,591.30/100,593.90
  6. Step 6: Final answer
    x = 83,262.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.