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Finding the Fourth Proportional to 71,190.60, 106,749.78 and 23,788.68

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Solution

The fourth proportional to 71,190.60, 106,749.78 and 23,788.68 is: 35,670.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,190.60 : 106,749.78 = 23,788.68 : x
  2. Step 2: Convert to fraction form
    71,190.60/106,749.78 = 23,788.68/x
  3. Step 3: Cross multiply
    71,190.60x = 106,749.78 × 23,788.68
  4. Step 4: Simplify right side
    71,190.60x = 2,539,436,356.49
  5. Step 5: Solve for x
    x = 2,539,436,356.49/71,190.60
  6. Step 6: Final answer
    x = 35,670.95

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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.