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Finding the Fourth Proportional to 88,369, 121,949.22 and 48,625

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Solution

The fourth proportional to 88,369, 121,949.22 and 48,625 is: 67,102.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,369 : 121,949.22 = 48,625 : x
  2. Step 2: Convert to fraction form
    88,369/121,949.22 = 48,625/x
  3. Step 3: Cross multiply
    88,369x = 121,949.22 × 48,625
  4. Step 4: Simplify right side
    88,369x = 5,929,780,822.50
  5. Step 5: Solve for x
    x = 5,929,780,822.50/88,369
  6. Step 6: Final answer
    x = 67,102.50

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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.