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Finding the Fourth Proportional to 215,820.19, 323,759.84 and 73,627.29

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Solution

The fourth proportional to 215,820.19, 323,759.84 and 73,627.29 is: 110,451.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,820.19 : 323,759.84 = 73,627.29 : x
  2. Step 2: Convert to fraction form
    215,820.19/323,759.84 = 73,627.29/x
  3. Step 3: Cross multiply
    215,820.19x = 323,759.84 × 73,627.29
  4. Step 4: Simplify right side
    215,820.19x = 23,837,559,717.18
  5. Step 5: Solve for x
    x = 23,837,559,717.18/215,820.19
  6. Step 6: Final answer
    x = 110,451.02

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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.