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Finding the Fourth Proportional to 101,313.15, 151,876.80 and 38,936.67

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Solution

The fourth proportional to 101,313.15, 151,876.80 and 38,936.67 is: 58,369.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,313.15 : 151,876.80 = 38,936.67 : x
  2. Step 2: Convert to fraction form
    101,313.15/151,876.80 = 38,936.67/x
  3. Step 3: Cross multiply
    101,313.15x = 151,876.80 × 38,936.67
  4. Step 4: Simplify right side
    101,313.15x = 5,913,576,842.26
  5. Step 5: Solve for x
    x = 5,913,576,842.26/101,313.15
  6. Step 6: Final answer
    x = 58,369.29

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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.