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Finding the Fourth Proportional to 219,610.54, 329,438.22 and 59,689

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Solution

The fourth proportional to 219,610.54, 329,438.22 and 59,689 is: 89,539.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,610.54 : 329,438.22 = 59,689 : x
  2. Step 2: Convert to fraction form
    219,610.54/329,438.22 = 59,689/x
  3. Step 3: Cross multiply
    219,610.54x = 329,438.22 × 59,689
  4. Step 4: Simplify right side
    219,610.54x = 19,663,837,913.58
  5. Step 5: Solve for x
    x = 19,663,837,913.58/219,610.54
  6. Step 6: Final answer
    x = 89,539.59

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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.