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Finding the Fourth Proportional to 84,157.14, 126,115.42 and 61,795.06

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Solution

The fourth proportional to 84,157.14, 126,115.42 and 61,795.06 is: 92,604.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,157.14 : 126,115.42 = 61,795.06 : x
  2. Step 2: Convert to fraction form
    84,157.14/126,115.42 = 61,795.06/x
  3. Step 3: Cross multiply
    84,157.14x = 126,115.42 × 61,795.06
  4. Step 4: Simplify right side
    84,157.14x = 7,793,309,945.83
  5. Step 5: Solve for x
    x = 7,793,309,945.83/84,157.14
  6. Step 6: Final answer
    x = 92,604.26

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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.