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Finding the Fourth Proportional to 219,531.96, 329,259.62 and 61,722.90

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Solution

The fourth proportional to 219,531.96, 329,259.62 and 61,722.90 is: 92,573.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,531.96 : 329,259.62 = 61,722.90 : x
  2. Step 2: Convert to fraction form
    219,531.96/329,259.62 = 61,722.90/x
  3. Step 3: Cross multiply
    219,531.96x = 329,259.62 × 61,722.90
  4. Step 4: Simplify right side
    219,531.96x = 20,322,858,599.30
  5. Step 5: Solve for x
    x = 20,322,858,599.30/219,531.96
  6. Step 6: Final answer
    x = 92,573.58

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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.