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Finding the Fourth Proportional to 101,819.14, 140,012.16 and 88,367.03

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Solution

The fourth proportional to 101,819.14, 140,012.16 and 88,367.03 is: 121,514.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,819.14 : 140,012.16 = 88,367.03 : x
  2. Step 2: Convert to fraction form
    101,819.14/140,012.16 = 88,367.03/x
  3. Step 3: Cross multiply
    101,819.14x = 140,012.16 × 88,367.03
  4. Step 4: Simplify right side
    101,819.14x = 12,372,458,743.08
  5. Step 5: Solve for x
    x = 12,372,458,743.08/101,819.14
  6. Step 6: Final answer
    x = 121,514.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.