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Finding the Fourth Proportional to 220,894.50, 331,341.75 and 54,682.50

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Solution

The fourth proportional to 220,894.50, 331,341.75 and 54,682.50 is: 82,023.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,894.50 : 331,341.75 = 54,682.50 : x
  2. Step 2: Convert to fraction form
    220,894.50/331,341.75 = 54,682.50/x
  3. Step 3: Cross multiply
    220,894.50x = 331,341.75 × 54,682.50
  4. Step 4: Simplify right side
    220,894.50x = 18,118,595,244.38
  5. Step 5: Solve for x
    x = 18,118,595,244.38/220,894.50
  6. Step 6: Final answer
    x = 82,023.75

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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.