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Finding the Fourth Proportional to 101,926.80, 140,659.88 and 59,477.13

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Solution

The fourth proportional to 101,926.80, 140,659.88 and 59,477.13 is: 82,078.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,926.80 : 140,659.88 = 59,477.13 : x
  2. Step 2: Convert to fraction form
    101,926.80/140,659.88 = 59,477.13/x
  3. Step 3: Cross multiply
    101,926.80x = 140,659.88 × 59,477.13
  4. Step 4: Simplify right side
    101,926.80x = 8,366,045,671.16
  5. Step 5: Solve for x
    x = 8,366,045,671.16/101,926.80
  6. Step 6: Final answer
    x = 82,078.96

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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.