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Finding the Fourth Proportional to 161,020.80, 241,458.30 and 61,147.80

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Solution

The fourth proportional to 161,020.80, 241,458.30 and 61,147.80 is: 91,694.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,020.80 : 241,458.30 = 61,147.80 : x
  2. Step 2: Convert to fraction form
    161,020.80/241,458.30 = 61,147.80/x
  3. Step 3: Cross multiply
    161,020.80x = 241,458.30 × 61,147.80
  4. Step 4: Simplify right side
    161,020.80x = 14,764,643,836.74
  5. Step 5: Solve for x
    x = 14,764,643,836.74/161,020.80
  6. Step 6: Final answer
    x = 91,694.02

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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.