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Finding the Fourth Proportional to 85,175.60, 127,788.06 and 35,246.48

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Solution

The fourth proportional to 85,175.60, 127,788.06 and 35,246.48 is: 52,879.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,175.60 : 127,788.06 = 35,246.48 : x
  2. Step 2: Convert to fraction form
    85,175.60/127,788.06 = 35,246.48/x
  3. Step 3: Cross multiply
    85,175.60x = 127,788.06 × 35,246.48
  4. Step 4: Simplify right side
    85,175.60x = 4,504,079,301.03
  5. Step 5: Solve for x
    x = 4,504,079,301.03/85,175.60
  6. Step 6: Final answer
    x = 52,879.92

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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.