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Finding the Fourth Proportional to 84,296.89, 127,007.48 and 76,301.38

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Solution

The fourth proportional to 84,296.89, 127,007.48 and 76,301.38 is: 114,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,296.89 : 127,007.48 = 76,301.38 : x
  2. Step 2: Convert to fraction form
    84,296.89/127,007.48 = 76,301.38/x
  3. Step 3: Cross multiply
    84,296.89x = 127,007.48 × 76,301.38
  4. Step 4: Simplify right side
    84,296.89x = 9,690,845,994.32
  5. Step 5: Solve for x
    x = 9,690,845,994.32/84,296.89
  6. Step 6: Final answer
    x = 114,960.90

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.