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Finding the Fourth Proportional to 165,834.40, 248,751.60 and 82,890.40

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Solution

The fourth proportional to 165,834.40, 248,751.60 and 82,890.40 is: 124,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,834.40 : 248,751.60 = 82,890.40 : x
  2. Step 2: Convert to fraction form
    165,834.40/248,751.60 = 82,890.40/x
  3. Step 3: Cross multiply
    165,834.40x = 248,751.60 × 82,890.40
  4. Step 4: Simplify right side
    165,834.40x = 20,619,119,624.64
  5. Step 5: Solve for x
    x = 20,619,119,624.64/165,834.40
  6. Step 6: Final answer
    x = 124,335.60

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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.