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Finding the Fourth Proportional to 101,049.49, 151,906.40 and 93,742.21

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Solution

The fourth proportional to 101,049.49, 151,906.40 and 93,742.21 is: 140,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,049.49 : 151,906.40 = 93,742.21 : x
  2. Step 2: Convert to fraction form
    101,049.49/151,906.40 = 93,742.21/x
  3. Step 3: Cross multiply
    101,049.49x = 151,906.40 × 93,742.21
  4. Step 4: Simplify right side
    101,049.49x = 14,240,040,420.90
  5. Step 5: Solve for x
    x = 14,240,040,420.90/101,049.49
  6. Step 6: Final answer
    x = 140,921.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.