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Finding the Fourth Proportional to 107,963.48, 148,989.81 and 60,219.92

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Solution

The fourth proportional to 107,963.48, 148,989.81 and 60,219.92 is: 83,103.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,963.48 : 148,989.81 = 60,219.92 : x
  2. Step 2: Convert to fraction form
    107,963.48/148,989.81 = 60,219.92/x
  3. Step 3: Cross multiply
    107,963.48x = 148,989.81 × 60,219.92
  4. Step 4: Simplify right side
    107,963.48x = 8,972,154,439.02
  5. Step 5: Solve for x
    x = 8,972,154,439.02/107,963.48
  6. Step 6: Final answer
    x = 83,103.61

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1.5x scale

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.