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Finding the Fourth Proportional to 110,513.80, 165,770.70 and 82,865.80

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Solution

The fourth proportional to 110,513.80, 165,770.70 and 82,865.80 is: 124,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,513.80 : 165,770.70 = 82,865.80 : x
  2. Step 2: Convert to fraction form
    110,513.80/165,770.70 = 82,865.80/x
  3. Step 3: Cross multiply
    110,513.80x = 165,770.70 × 82,865.80
  4. Step 4: Simplify right side
    110,513.80x = 13,736,721,672.06
  5. Step 5: Solve for x
    x = 13,736,721,672.06/110,513.80
  6. Step 6: Final answer
    x = 124,298.70

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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.