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Finding the Fourth Proportional to 92,650.77, 138,868.79 and 42,625.89

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Solution

The fourth proportional to 92,650.77, 138,868.79 and 42,625.89 is: 63,889.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,650.77 : 138,868.79 = 42,625.89 : x
  2. Step 2: Convert to fraction form
    92,650.77/138,868.79 = 42,625.89/x
  3. Step 3: Cross multiply
    92,650.77x = 138,868.79 × 42,625.89
  4. Step 4: Simplify right side
    92,650.77x = 5,919,405,553.84
  5. Step 5: Solve for x
    x = 5,919,405,553.84/92,650.77
  6. Step 6: Final answer
    x = 63,889.44

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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.