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Finding the Fourth Proportional to 107,963.53, 148,989.93 and 60,219.97

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Solution

The fourth proportional to 107,963.53, 148,989.93 and 60,219.97 is: 83,103.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,963.53 : 148,989.93 = 60,219.97 : x
  2. Step 2: Convert to fraction form
    107,963.53/148,989.93 = 60,219.97/x
  3. Step 3: Cross multiply
    107,963.53x = 148,989.93 × 60,219.97
  4. Step 4: Simplify right side
    107,963.53x = 8,972,169,114.90
  5. Step 5: Solve for x
    x = 8,972,169,114.90/107,963.53
  6. Step 6: Final answer
    x = 83,103.70

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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.