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Finding the Fourth Proportional to 84,884.79, 117,134.15 and 49,077.11

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Solution

The fourth proportional to 84,884.79, 117,134.15 and 49,077.11 is: 67,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,884.79 : 117,134.15 = 49,077.11 : x
  2. Step 2: Convert to fraction form
    84,884.79/117,134.15 = 49,077.11/x
  3. Step 3: Cross multiply
    84,884.79x = 117,134.15 × 49,077.11
  4. Step 4: Simplify right side
    84,884.79x = 5,748,605,564.31
  5. Step 5: Solve for x
    x = 5,748,605,564.31/84,884.79
  6. Step 6: Final answer
    x = 67,722.45

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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.