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Finding the Fourth Proportional to 219,672.54, 329,132.70 and 119,902.77

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Solution

The fourth proportional to 219,672.54, 329,132.70 and 119,902.77 is: 179,648.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,672.54 : 329,132.70 = 119,902.77 : x
  2. Step 2: Convert to fraction form
    219,672.54/329,132.70 = 119,902.77/x
  3. Step 3: Cross multiply
    219,672.54x = 329,132.70 × 119,902.77
  4. Step 4: Simplify right side
    219,672.54x = 39,463,922,427.58
  5. Step 5: Solve for x
    x = 39,463,922,427.58/219,672.54
  6. Step 6: Final answer
    x = 179,648.86

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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.