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Finding the Fourth Proportional to 215,354.22, 323,005.89 and 57,594.90

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Solution

The fourth proportional to 215,354.22, 323,005.89 and 57,594.90 is: 86,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,354.22 : 323,005.89 = 57,594.90 : x
  2. Step 2: Convert to fraction form
    215,354.22/323,005.89 = 57,594.90/x
  3. Step 3: Cross multiply
    215,354.22x = 323,005.89 × 57,594.90
  4. Step 4: Simplify right side
    215,354.22x = 18,603,491,933.96
  5. Step 5: Solve for x
    x = 18,603,491,933.96/215,354.22
  6. Step 6: Final answer
    x = 86,385.55

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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.