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Finding the Fourth Proportional to 101,081.85, 151,331.18 and 101,081.85

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Solution

The fourth proportional to 101,081.85, 151,331.18 and 101,081.85 is: 151,331.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,081.85 : 151,331.18 = 101,081.85 : x
  2. Step 2: Convert to fraction form
    101,081.85/151,331.18 = 101,081.85/x
  3. Step 3: Cross multiply
    101,081.85x = 151,331.18 × 101,081.85
  4. Step 4: Simplify right side
    101,081.85x = 15,296,835,131.67
  5. Step 5: Solve for x
    x = 15,296,835,131.67/101,081.85
  6. Step 6: Final answer
    x = 151,331.18

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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.