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Finding the Fourth Proportional to 98,562.56, 136,016.38 and 53,240.54

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Solution

The fourth proportional to 98,562.56, 136,016.38 and 53,240.54 is: 73,471.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,562.56 : 136,016.38 = 53,240.54 : x
  2. Step 2: Convert to fraction form
    98,562.56/136,016.38 = 53,240.54/x
  3. Step 3: Cross multiply
    98,562.56x = 136,016.38 × 53,240.54
  4. Step 4: Simplify right side
    98,562.56x = 7,241,584,839.96
  5. Step 5: Solve for x
    x = 7,241,584,839.96/98,562.56
  6. Step 6: Final answer
    x = 73,471.97

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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.