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Finding the Fourth Proportional to 87,967.73, 121,411.72 and 50,241.98

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Solution

The fourth proportional to 87,967.73, 121,411.72 and 50,241.98 is: 69,343.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,967.73 : 121,411.72 = 50,241.98 : x
  2. Step 2: Convert to fraction form
    87,967.73/121,411.72 = 50,241.98/x
  3. Step 3: Cross multiply
    87,967.73x = 121,411.72 × 50,241.98
  4. Step 4: Simplify right side
    87,967.73x = 6,099,964,600.95
  5. Step 5: Solve for x
    x = 6,099,964,600.95/87,967.73
  6. Step 6: Final answer
    x = 69,343.21

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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.