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Finding the Fourth Proportional to 84,756, 116,963.28 and 47,036.32

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Solution

The fourth proportional to 84,756, 116,963.28 and 47,036.32 is: 64,910.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,756 : 116,963.28 = 47,036.32 : x
  2. Step 2: Convert to fraction form
    84,756/116,963.28 = 47,036.32/x
  3. Step 3: Cross multiply
    84,756x = 116,963.28 × 47,036.32
  4. Step 4: Simplify right side
    84,756x = 5,501,522,266.33
  5. Step 5: Solve for x
    x = 5,501,522,266.33/84,756
  6. Step 6: Final answer
    x = 64,910.12

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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.