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Finding the Fourth Proportional to 100,963.44, 139,324.56 and 58,535.76

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Solution

The fourth proportional to 100,963.44, 139,324.56 and 58,535.76 is: 80,776.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,963.44 : 139,324.56 = 58,535.76 : x
  2. Step 2: Convert to fraction form
    100,963.44/139,324.56 = 58,535.76/x
  3. Step 3: Cross multiply
    100,963.44x = 139,324.56 × 58,535.76
  4. Step 4: Simplify right side
    100,963.44x = 8,155,469,006.27
  5. Step 5: Solve for x
    x = 8,155,469,006.27/100,963.44
  6. Step 6: Final answer
    x = 80,776.46

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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.