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Finding the Fourth Proportional to 120,003.48, 179,997.89 and 49,883.40

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Solution

The fourth proportional to 120,003.48, 179,997.89 and 49,883.40 is: 74,822.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,003.48 : 179,997.89 = 49,883.40 : x
  2. Step 2: Convert to fraction form
    120,003.48/179,997.89 = 49,883.40/x
  3. Step 3: Cross multiply
    120,003.48x = 179,997.89 × 49,883.40
  4. Step 4: Simplify right side
    120,003.48x = 8,978,906,496.61
  5. Step 5: Solve for x
    x = 8,978,906,496.61/120,003.48
  6. Step 6: Final answer
    x = 74,822.05

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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.