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Finding the Fourth Proportional to 221,885.70, 332,877.15 and 109,619.70

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Solution

The fourth proportional to 221,885.70, 332,877.15 and 109,619.70 is: 164,453.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,885.70 : 332,877.15 = 109,619.70 : x
  2. Step 2: Convert to fraction form
    221,885.70/332,877.15 = 109,619.70/x
  3. Step 3: Cross multiply
    221,885.70x = 332,877.15 × 109,619.70
  4. Step 4: Simplify right side
    221,885.70x = 36,489,893,319.86
  5. Step 5: Solve for x
    x = 36,489,893,319.86/221,885.70
  6. Step 6: Final answer
    x = 164,453.56

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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.