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Finding the Fourth Proportional to 87,226.40, 130,515.60 and 63,898.40

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Solution

The fourth proportional to 87,226.40, 130,515.60 and 63,898.40 is: 95,610.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,226.40 : 130,515.60 = 63,898.40 : x
  2. Step 2: Convert to fraction form
    87,226.40/130,515.60 = 63,898.40/x
  3. Step 3: Cross multiply
    87,226.40x = 130,515.60 × 63,898.40
  4. Step 4: Simplify right side
    87,226.40x = 8,339,738,015.04
  5. Step 5: Solve for x
    x = 8,339,738,015.04/87,226.40
  6. Step 6: Final answer
    x = 95,610.25

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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.