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Finding the Fourth Proportional to 78,836.33, 108,794.43 and 43,027.13

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Solution

The fourth proportional to 78,836.33, 108,794.43 and 43,027.13 is: 59,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,836.33 : 108,794.43 = 43,027.13 : x
  2. Step 2: Convert to fraction form
    78,836.33/108,794.43 = 43,027.13/x
  3. Step 3: Cross multiply
    78,836.33x = 108,794.43 × 43,027.13
  4. Step 4: Simplify right side
    78,836.33x = 4,681,111,538.91
  5. Step 5: Solve for x
    x = 4,681,111,538.91/78,836.33
  6. Step 6: Final answer
    x = 59,377.60

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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.