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Finding the Fourth Proportional to 60,496.80, 90,745.20 and 53,279.70

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Solution

The fourth proportional to 60,496.80, 90,745.20 and 53,279.70 is: 79,919.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,496.80 : 90,745.20 = 53,279.70 : x
  2. Step 2: Convert to fraction form
    60,496.80/90,745.20 = 53,279.70/x
  3. Step 3: Cross multiply
    60,496.80x = 90,745.20 × 53,279.70
  4. Step 4: Simplify right side
    60,496.80x = 4,834,877,032.44
  5. Step 5: Solve for x
    x = 4,834,877,032.44/60,496.80
  6. Step 6: Final answer
    x = 79,919.55

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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.