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Finding the Fourth Proportional to 199,820.26, 299,722.15 and 111,017.13

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Solution

The fourth proportional to 199,820.26, 299,722.15 and 111,017.13 is: 166,521.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,820.26 : 299,722.15 = 111,017.13 : x
  2. Step 2: Convert to fraction form
    199,820.26/299,722.15 = 111,017.13/x
  3. Step 3: Cross multiply
    199,820.26x = 299,722.15 × 111,017.13
  4. Step 4: Simplify right side
    199,820.26x = 33,274,292,890.43
  5. Step 5: Solve for x
    x = 33,274,292,890.43/199,820.26
  6. Step 6: Final answer
    x = 166,521.12

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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.