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Finding the Fourth Proportional to 165,808.20, 248,712.30 and 106,710.60

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Solution

The fourth proportional to 165,808.20, 248,712.30 and 106,710.60 is: 160,065.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,808.20 : 248,712.30 = 106,710.60 : x
  2. Step 2: Convert to fraction form
    165,808.20/248,712.30 = 106,710.60/x
  3. Step 3: Cross multiply
    165,808.20x = 248,712.30 × 106,710.60
  4. Step 4: Simplify right side
    165,808.20x = 26,540,238,760.38
  5. Step 5: Solve for x
    x = 26,540,238,760.38/165,808.20
  6. Step 6: Final answer
    x = 160,065.90

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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.