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Finding the Fourth Proportional to 220,091.25, 303,725.94 and 119,489.25

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Solution

The fourth proportional to 220,091.25, 303,725.94 and 119,489.25 is: 164,895.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,091.25 : 303,725.94 = 119,489.25 : x
  2. Step 2: Convert to fraction form
    220,091.25/303,725.94 = 119,489.25/x
  3. Step 3: Cross multiply
    220,091.25x = 303,725.94 × 119,489.25
  4. Step 4: Simplify right side
    220,091.25x = 36,291,984,776.15
  5. Step 5: Solve for x
    x = 36,291,984,776.15/220,091.25
  6. Step 6: Final answer
    x = 164,895.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.