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Finding the Fourth Proportional to 75,819.60, 113,556.60 and 44,715.60

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Solution

The fourth proportional to 75,819.60, 113,556.60 and 44,715.60 is: 66,971.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,819.60 : 113,556.60 = 44,715.60 : x
  2. Step 2: Convert to fraction form
    75,819.60/113,556.60 = 44,715.60/x
  3. Step 3: Cross multiply
    75,819.60x = 113,556.60 × 44,715.60
  4. Step 4: Simplify right side
    75,819.60x = 5,077,751,502.96
  5. Step 5: Solve for x
    x = 5,077,751,502.96/75,819.60
  6. Step 6: Final answer
    x = 66,971.49

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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.