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Finding the Fourth Proportional to 101,927.26, 140,660.48 and 56,606

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Solution

The fourth proportional to 101,927.26, 140,660.48 and 56,606 is: 78,116.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,927.26 : 140,660.48 = 56,606 : x
  2. Step 2: Convert to fraction form
    101,927.26/140,660.48 = 56,606/x
  3. Step 3: Cross multiply
    101,927.26x = 140,660.48 × 56,606
  4. Step 4: Simplify right side
    101,927.26x = 7,962,227,130.88
  5. Step 5: Solve for x
    x = 7,962,227,130.88/101,927.26
  6. Step 6: Final answer
    x = 78,116.76

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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.