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Finding the Fourth Proportional to 101,927.88, 140,660.82 and 56,605.98

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Solution

The fourth proportional to 101,927.88, 140,660.82 and 56,605.98 is: 78,116.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,927.88 : 140,660.82 = 56,605.98 : x
  2. Step 2: Convert to fraction form
    101,927.88/140,660.82 = 56,605.98/x
  3. Step 3: Cross multiply
    101,927.88x = 140,660.82 × 56,605.98
  4. Step 4: Simplify right side
    101,927.88x = 7,962,243,563.70
  5. Step 5: Solve for x
    x = 7,962,243,563.70/101,927.88
  6. Step 6: Final answer
    x = 78,116.44

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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.