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Finding the Fourth Proportional to 101,921.82, 140,641.79 and 59,504.95

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Solution

The fourth proportional to 101,921.82, 140,641.79 and 59,504.95 is: 82,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,921.82 : 140,641.79 = 59,504.95 : x
  2. Step 2: Convert to fraction form
    101,921.82/140,641.79 = 59,504.95/x
  3. Step 3: Cross multiply
    101,921.82x = 140,641.79 × 59,504.95
  4. Step 4: Simplify right side
    101,921.82x = 8,368,883,457.77
  5. Step 5: Solve for x
    x = 8,368,883,457.77/101,921.82
  6. Step 6: Final answer
    x = 82,110.81

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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.