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Finding the Fourth Proportional to 87,468.52, 120,709.22 and 49,748.20

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Solution

The fourth proportional to 87,468.52, 120,709.22 and 49,748.20 is: 68,654.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,468.52 : 120,709.22 = 49,748.20 : x
  2. Step 2: Convert to fraction form
    87,468.52/120,709.22 = 49,748.20/x
  3. Step 3: Cross multiply
    87,468.52x = 120,709.22 × 49,748.20
  4. Step 4: Simplify right side
    87,468.52x = 6,005,066,418.40
  5. Step 5: Solve for x
    x = 6,005,066,418.40/87,468.52
  6. Step 6: Final answer
    x = 68,654.03

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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.