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Finding the Fourth Proportional to 74,679.30, 111,834.51 and 55,658.33

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Solution

The fourth proportional to 74,679.30, 111,834.51 and 55,658.33 is: 83,350.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,679.30 : 111,834.51 = 55,658.33 : x
  2. Step 2: Convert to fraction form
    74,679.30/111,834.51 = 55,658.33/x
  3. Step 3: Cross multiply
    74,679.30x = 111,834.51 × 55,658.33
  4. Step 4: Simplify right side
    74,679.30x = 6,224,521,503.80
  5. Step 5: Solve for x
    x = 6,224,521,503.80/74,679.30
  6. Step 6: Final answer
    x = 83,350.02

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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.