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Finding the Fourth Proportional to 70,177.78, 96,947.78 and 60,729.94

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Solution

The fourth proportional to 70,177.78, 96,947.78 and 60,729.94 is: 83,895.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,177.78 : 96,947.78 = 60,729.94 : x
  2. Step 2: Convert to fraction form
    70,177.78/96,947.78 = 60,729.94/x
  3. Step 3: Cross multiply
    70,177.78x = 96,947.78 × 60,729.94
  4. Step 4: Simplify right side
    70,177.78x = 5,887,632,862.53
  5. Step 5: Solve for x
    x = 5,887,632,862.53/70,177.78
  6. Step 6: Final answer
    x = 83,895.97

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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.