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Finding the Fourth Proportional to 87,906.30, 131,859.45 and 46,434.30

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Solution

The fourth proportional to 87,906.30, 131,859.45 and 46,434.30 is: 69,651.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,906.30 : 131,859.45 = 46,434.30 : x
  2. Step 2: Convert to fraction form
    87,906.30/131,859.45 = 46,434.30/x
  3. Step 3: Cross multiply
    87,906.30x = 131,859.45 × 46,434.30
  4. Step 4: Simplify right side
    87,906.30x = 6,122,801,259.14
  5. Step 5: Solve for x
    x = 6,122,801,259.14/87,906.30
  6. Step 6: Final answer
    x = 69,651.45

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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.