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Finding the Fourth Proportional to 146,673, 202,408.77 and 79,605

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Solution

The fourth proportional to 146,673, 202,408.77 and 79,605 is: 109,854.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,673 : 202,408.77 = 79,605 : x
  2. Step 2: Convert to fraction form
    146,673/202,408.77 = 79,605/x
  3. Step 3: Cross multiply
    146,673x = 202,408.77 × 79,605
  4. Step 4: Simplify right side
    146,673x = 16,112,750,135.85
  5. Step 5: Solve for x
    x = 16,112,750,135.85/146,673
  6. Step 6: Final answer
    x = 109,854.92

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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.