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Finding the Fourth Proportional to 110,219.20, 165,328.80 and 57,644.80

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Solution

The fourth proportional to 110,219.20, 165,328.80 and 57,644.80 is: 86,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,219.20 : 165,328.80 = 57,644.80 : x
  2. Step 2: Convert to fraction form
    110,219.20/165,328.80 = 57,644.80/x
  3. Step 3: Cross multiply
    110,219.20x = 165,328.80 × 57,644.80
  4. Step 4: Simplify right side
    110,219.20x = 9,530,345,610.24
  5. Step 5: Solve for x
    x = 9,530,345,610.24/110,219.20
  6. Step 6: Final answer
    x = 86,467.20

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1.5x scale

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.