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Finding the Fourth Proportional to 69,291.10, 103,790.85 and 57,627.10

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Solution

The fourth proportional to 69,291.10, 103,790.85 and 57,627.10 is: 86,319.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,291.10 : 103,790.85 = 57,627.10 : x
  2. Step 2: Convert to fraction form
    69,291.10/103,790.85 = 57,627.10/x
  3. Step 3: Cross multiply
    69,291.10x = 103,790.85 × 57,627.10
  4. Step 4: Simplify right side
    69,291.10x = 5,981,165,692.04
  5. Step 5: Solve for x
    x = 5,981,165,692.04/69,291.10
  6. Step 6: Final answer
    x = 86,319.39

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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.