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Finding the Fourth Proportional to 84,883.79, 117,132.77 and 49,076.11

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Solution

The fourth proportional to 84,883.79, 117,132.77 and 49,076.11 is: 67,721.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,883.79 : 117,132.77 = 49,076.11 : x
  2. Step 2: Convert to fraction form
    84,883.79/117,132.77 = 49,076.11/x
  3. Step 3: Cross multiply
    84,883.79x = 117,132.77 × 49,076.11
  4. Step 4: Simplify right side
    84,883.79x = 5,748,420,846.62
  5. Step 5: Solve for x
    x = 5,748,420,846.62/84,883.79
  6. Step 6: Final answer
    x = 67,721.07

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Why These Related Problems?

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