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Finding the Fourth Proportional to 95,085.54, 142,619.78 and 28,540.52

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Solution

The fourth proportional to 95,085.54, 142,619.78 and 28,540.52 is: 42,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,085.54 : 142,619.78 = 28,540.52 : x
  2. Step 2: Convert to fraction form
    95,085.54/142,619.78 = 28,540.52/x
  3. Step 3: Cross multiply
    95,085.54x = 142,619.78 × 28,540.52
  4. Step 4: Simplify right side
    95,085.54x = 4,070,442,683.49
  5. Step 5: Solve for x
    x = 4,070,442,683.49/95,085.54
  6. Step 6: Final answer
    x = 42,808.22

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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.