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Finding the Fourth Proportional to 101,257.56, 139,729.14 and 60,984.36

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Solution

The fourth proportional to 101,257.56, 139,729.14 and 60,984.36 is: 84,154.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,257.56 : 139,729.14 = 60,984.36 : x
  2. Step 2: Convert to fraction form
    101,257.56/139,729.14 = 60,984.36/x
  3. Step 3: Cross multiply
    101,257.56x = 139,729.14 × 60,984.36
  4. Step 4: Simplify right side
    101,257.56x = 8,521,292,176.25
  5. Step 5: Solve for x
    x = 8,521,292,176.25/101,257.56
  6. Step 6: Final answer
    x = 84,154.63

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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.