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Finding the Fourth Proportional to 73,866.39, 101,910.31 and 42,027.31

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Solution

The fourth proportional to 73,866.39, 101,910.31 and 42,027.31 is: 57,983.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,866.39 : 101,910.31 = 42,027.31 : x
  2. Step 2: Convert to fraction form
    73,866.39/101,910.31 = 42,027.31/x
  3. Step 3: Cross multiply
    73,866.39x = 101,910.31 × 42,027.31
  4. Step 4: Simplify right side
    73,866.39x = 4,283,016,190.57
  5. Step 5: Solve for x
    x = 4,283,016,190.57/73,866.39
  6. Step 6: Final answer
    x = 57,983.29

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1.5x scale

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.