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Finding the Fourth Proportional to 161,106.56, 241,693.44 and 81,189.44

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Solution

The fourth proportional to 161,106.56, 241,693.44 and 81,189.44 is: 121,801.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,106.56 : 241,693.44 = 81,189.44 : x
  2. Step 2: Convert to fraction form
    161,106.56/241,693.44 = 81,189.44/x
  3. Step 3: Cross multiply
    161,106.56x = 241,693.44 × 81,189.44
  4. Step 4: Simplify right side
    161,106.56x = 19,622,955,045.27
  5. Step 5: Solve for x
    x = 19,622,955,045.27/161,106.56
  6. Step 6: Final answer
    x = 121,801.09

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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.