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Finding the Fourth Proportional to 220,013.75, 303,619.17 and 119,411.75

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Solution

The fourth proportional to 220,013.75, 303,619.17 and 119,411.75 is: 164,788.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,013.75 : 303,619.17 = 119,411.75 : x
  2. Step 2: Convert to fraction form
    220,013.75/303,619.17 = 119,411.75/x
  3. Step 3: Cross multiply
    220,013.75x = 303,619.17 × 119,411.75
  4. Step 4: Simplify right side
    220,013.75x = 36,255,694,905.15
  5. Step 5: Solve for x
    x = 36,255,694,905.15/220,013.75
  6. Step 6: Final answer
    x = 164,788.32

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1.5x scale

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.