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Finding the Fourth Proportional to 106,933, 147,600.39 and 61,641.26

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Solution

The fourth proportional to 106,933, 147,600.39 and 61,641.26 is: 85,083.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,933 : 147,600.39 = 61,641.26 : x
  2. Step 2: Convert to fraction form
    106,933/147,600.39 = 61,641.26/x
  3. Step 3: Cross multiply
    106,933x = 147,600.39 × 61,641.26
  4. Step 4: Simplify right side
    106,933x = 9,098,274,016.09
  5. Step 5: Solve for x
    x = 9,098,274,016.09/106,933
  6. Step 6: Final answer
    x = 85,083.88

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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.