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Finding the Fourth Proportional to 89,757.92, 123,866.52 and 51,507.26

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Solution

The fourth proportional to 89,757.92, 123,866.52 and 51,507.26 is: 71,080.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,757.92 : 123,866.52 = 51,507.26 : x
  2. Step 2: Convert to fraction form
    89,757.92/123,866.52 = 51,507.26/x
  3. Step 3: Cross multiply
    89,757.92x = 123,866.52 × 51,507.26
  4. Step 4: Simplify right side
    89,757.92x = 6,380,025,050.94
  5. Step 5: Solve for x
    x = 6,380,025,050.94/89,757.92
  6. Step 6: Final answer
    x = 71,080.36

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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.