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Finding the Fourth Proportional to 219,998.73, 330,092.92 and 118,776.68

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Solution

The fourth proportional to 219,998.73, 330,092.92 and 118,776.68 is: 178,216.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,998.73 : 330,092.92 = 118,776.68 : x
  2. Step 2: Convert to fraction form
    219,998.73/330,092.92 = 118,776.68/x
  3. Step 3: Cross multiply
    219,998.73x = 330,092.92 × 118,776.68
  4. Step 4: Simplify right side
    219,998.73x = 39,207,341,657.40
  5. Step 5: Solve for x
    x = 39,207,341,657.40/219,998.73
  6. Step 6: Final answer
    x = 178,216.22

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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.