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Finding the Fourth Proportional to 81,959.58, 113,057.10 and 51,734.16

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Solution

The fourth proportional to 81,959.58, 113,057.10 and 51,734.16 is: 71,363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,959.58 : 113,057.10 = 51,734.16 : x
  2. Step 2: Convert to fraction form
    81,959.58/113,057.10 = 51,734.16/x
  3. Step 3: Cross multiply
    81,959.58x = 113,057.10 × 51,734.16
  4. Step 4: Simplify right side
    81,959.58x = 5,848,914,100.54
  5. Step 5: Solve for x
    x = 5,848,914,100.54/81,959.58
  6. Step 6: Final answer
    x = 71,363.40

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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.