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Finding the Fourth Proportional to 111,896.56, 154,417.25 and 61,595.56

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Solution

The fourth proportional to 111,896.56, 154,417.25 and 61,595.56 is: 85,001.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,896.56 : 154,417.25 = 61,595.56 : x
  2. Step 2: Convert to fraction form
    111,896.56/154,417.25 = 61,595.56/x
  3. Step 3: Cross multiply
    111,896.56x = 154,417.25 × 61,595.56
  4. Step 4: Simplify right side
    111,896.56x = 9,511,416,293.39
  5. Step 5: Solve for x
    x = 9,511,416,293.39/111,896.56
  6. Step 6: Final answer
    x = 85,001.87

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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.