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Finding the Fourth Proportional to 165,680.80, 248,562.60 and 53,371.60

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Solution

The fourth proportional to 165,680.80, 248,562.60 and 53,371.60 is: 80,070.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,680.80 : 248,562.60 = 53,371.60 : x
  2. Step 2: Convert to fraction form
    165,680.80/248,562.60 = 53,371.60/x
  3. Step 3: Cross multiply
    165,680.80x = 248,562.60 × 53,371.60
  4. Step 4: Simplify right side
    165,680.80x = 13,266,183,662.16
  5. Step 5: Solve for x
    x = 13,266,183,662.16/165,680.80
  6. Step 6: Final answer
    x = 80,070.74

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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.