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Finding the Fourth Proportional to 81,352.96, 112,273.54 and 59,940.54

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Solution

The fourth proportional to 81,352.96, 112,273.54 and 59,940.54 is: 82,722.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,352.96 : 112,273.54 = 59,940.54 : x
  2. Step 2: Convert to fraction form
    81,352.96/112,273.54 = 59,940.54/x
  3. Step 3: Cross multiply
    81,352.96x = 112,273.54 × 59,940.54
  4. Step 4: Simplify right side
    81,352.96x = 6,729,736,615.31
  5. Step 5: Solve for x
    x = 6,729,736,615.31/81,352.96
  6. Step 6: Final answer
    x = 82,722.70

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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.