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Finding the Fourth Proportional to 101,009.80, 151,514.70 and 73,016.20

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Solution

The fourth proportional to 101,009.80, 151,514.70 and 73,016.20 is: 109,524.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,009.80 : 151,514.70 = 73,016.20 : x
  2. Step 2: Convert to fraction form
    101,009.80/151,514.70 = 73,016.20/x
  3. Step 3: Cross multiply
    101,009.80x = 151,514.70 × 73,016.20
  4. Step 4: Simplify right side
    101,009.80x = 11,063,027,638.14
  5. Step 5: Solve for x
    x = 11,063,027,638.14/101,009.80
  6. Step 6: Final answer
    x = 109,524.30

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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.