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Finding the Fourth Proportional to 165,215.60, 248,017.80 and 164,049.20

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Solution

The fourth proportional to 165,215.60, 248,017.80 and 164,049.20 is: 246,266.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,215.60 : 248,017.80 = 164,049.20 : x
  2. Step 2: Convert to fraction form
    165,215.60/248,017.80 = 164,049.20/x
  3. Step 3: Cross multiply
    165,215.60x = 248,017.80 × 164,049.20
  4. Step 4: Simplify right side
    165,215.60x = 40,687,121,675.76
  5. Step 5: Solve for x
    x = 40,687,121,675.76/165,215.60
  6. Step 6: Final answer
    x = 246,266.83

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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.