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Finding the Fourth Proportional to 165,906.20, 248,859.30 and 55,098.20

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Solution

The fourth proportional to 165,906.20, 248,859.30 and 55,098.20 is: 82,647.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,906.20 : 248,859.30 = 55,098.20 : x
  2. Step 2: Convert to fraction form
    165,906.20/248,859.30 = 55,098.20/x
  3. Step 3: Cross multiply
    165,906.20x = 248,859.30 × 55,098.20
  4. Step 4: Simplify right side
    165,906.20x = 13,711,699,483.26
  5. Step 5: Solve for x
    x = 13,711,699,483.26/165,906.20
  6. Step 6: Final answer
    x = 82,647.30

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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.