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Finding the Fourth Proportional to 74,793.84, 112,121.51 and 39,247.80

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Solution

The fourth proportional to 74,793.84, 112,121.51 and 39,247.80 is: 58,835.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,793.84 : 112,121.51 = 39,247.80 : x
  2. Step 2: Convert to fraction form
    74,793.84/112,121.51 = 39,247.80/x
  3. Step 3: Cross multiply
    74,793.84x = 112,121.51 × 39,247.80
  4. Step 4: Simplify right side
    74,793.84x = 4,400,522,403.94
  5. Step 5: Solve for x
    x = 4,400,522,403.94/74,793.84
  6. Step 6: Final answer
    x = 58,835.36

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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.