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Finding the Fourth Proportional to 219,211.23, 328,826.42 and 69,462.56

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Solution

The fourth proportional to 219,211.23, 328,826.42 and 69,462.56 is: 104,196.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,211.23 : 328,826.42 = 69,462.56 : x
  2. Step 2: Convert to fraction form
    219,211.23/328,826.42 = 69,462.56/x
  3. Step 3: Cross multiply
    219,211.23x = 328,826.42 × 69,462.56
  4. Step 4: Simplify right side
    219,211.23x = 22,841,122,937.39
  5. Step 5: Solve for x
    x = 22,841,122,937.39/219,211.23
  6. Step 6: Final answer
    x = 104,196.86

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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.