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Finding the Fourth Proportional to 83,483.79, 115,212.34 and 49,512.39

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Solution

The fourth proportional to 83,483.79, 115,212.34 and 49,512.39 is: 68,329.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,483.79 : 115,212.34 = 49,512.39 : x
  2. Step 2: Convert to fraction form
    83,483.79/115,212.34 = 49,512.39/x
  3. Step 3: Cross multiply
    83,483.79x = 115,212.34 × 49,512.39
  4. Step 4: Simplify right side
    83,483.79x = 5,704,438,310.89
  5. Step 5: Solve for x
    x = 5,704,438,310.89/83,483.79
  6. Step 6: Final answer
    x = 68,329.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.