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Finding the Fourth Proportional to 87,505.92, 130,947.84 and 64,074.24

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Solution

The fourth proportional to 87,505.92, 130,947.84 and 64,074.24 is: 95,883.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,505.92 : 130,947.84 = 64,074.24 : x
  2. Step 2: Convert to fraction form
    87,505.92/130,947.84 = 64,074.24/x
  3. Step 3: Cross multiply
    87,505.92x = 130,947.84 × 64,074.24
  4. Step 4: Simplify right side
    87,505.92x = 8,390,383,327.64
  5. Step 5: Solve for x
    x = 8,390,383,327.64/87,505.92
  6. Step 6: Final answer
    x = 95,883.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.