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Finding the Fourth Proportional to 74,195.22, 111,404 and 64,230.70

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Solution

The fourth proportional to 74,195.22, 111,404 and 64,230.70 is: 96,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,195.22 : 111,404 = 64,230.70 : x
  2. Step 2: Convert to fraction form
    74,195.22/111,404 = 64,230.70/x
  3. Step 3: Cross multiply
    74,195.22x = 111,404 × 64,230.70
  4. Step 4: Simplify right side
    74,195.22x = 7,155,556,902.80
  5. Step 5: Solve for x
    x = 7,155,556,902.80/74,195.22
  6. Step 6: Final answer
    x = 96,442.29

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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.