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Finding the Fourth Proportional to 220,236.72, 303,930.36 and 119,634.72

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Solution

The fourth proportional to 220,236.72, 303,930.36 and 119,634.72 is: 165,097.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,236.72 : 303,930.36 = 119,634.72 : x
  2. Step 2: Convert to fraction form
    220,236.72/303,930.36 = 119,634.72/x
  3. Step 3: Cross multiply
    220,236.72x = 303,930.36 × 119,634.72
  4. Step 4: Simplify right side
    220,236.72x = 36,360,623,518.10
  5. Step 5: Solve for x
    x = 36,360,623,518.10/220,236.72
  6. Step 6: Final answer
    x = 165,097.92

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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.