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Finding the Fourth Proportional to 161,080.71, 241,629.40 and 41,138.78

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Solution

The fourth proportional to 161,080.71, 241,629.40 and 41,138.78 is: 61,710.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,080.71 : 241,629.40 = 41,138.78 : x
  2. Step 2: Convert to fraction form
    161,080.71/241,629.40 = 41,138.78/x
  3. Step 3: Cross multiply
    161,080.71x = 241,629.40 × 41,138.78
  4. Step 4: Simplify right side
    161,080.71x = 9,940,338,124.06
  5. Step 5: Solve for x
    x = 9,940,338,124.06/161,080.71
  6. Step 6: Final answer
    x = 61,710.29

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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.