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Finding the Fourth Proportional to 165,870.80, 248,806.20 and 41,211.80

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Solution

The fourth proportional to 165,870.80, 248,806.20 and 41,211.80 is: 61,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,870.80 : 248,806.20 = 41,211.80 : x
  2. Step 2: Convert to fraction form
    165,870.80/248,806.20 = 41,211.80/x
  3. Step 3: Cross multiply
    165,870.80x = 248,806.20 × 41,211.80
  4. Step 4: Simplify right side
    165,870.80x = 10,253,751,353.16
  5. Step 5: Solve for x
    x = 10,253,751,353.16/165,870.80
  6. Step 6: Final answer
    x = 61,817.70

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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.