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Finding the Fourth Proportional to 165,545.60, 248,836.80 and 162,435.20

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Solution

The fourth proportional to 165,545.60, 248,836.80 and 162,435.20 is: 244,161.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,545.60 : 248,836.80 = 162,435.20 : x
  2. Step 2: Convert to fraction form
    165,545.60/248,836.80 = 162,435.20/x
  3. Step 3: Cross multiply
    165,545.60x = 248,836.80 × 162,435.20
  4. Step 4: Simplify right side
    165,545.60x = 40,419,855,375.36
  5. Step 5: Solve for x
    x = 40,419,855,375.36/165,545.60
  6. Step 6: Final answer
    x = 244,161.46

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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.