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Finding the Fourth Proportional to 101,633.66, 140,274.11 and 58,640.95

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Solution

The fourth proportional to 101,633.66, 140,274.11 and 58,640.95 is: 80,935.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,633.66 : 140,274.11 = 58,640.95 : x
  2. Step 2: Convert to fraction form
    101,633.66/140,274.11 = 58,640.95/x
  3. Step 3: Cross multiply
    101,633.66x = 140,274.11 × 58,640.95
  4. Step 4: Simplify right side
    101,633.66x = 8,225,807,070.80
  5. Step 5: Solve for x
    x = 8,225,807,070.80/101,633.66
  6. Step 6: Final answer
    x = 80,935.85

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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.