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Finding the Fourth Proportional to 220,211.70, 303,892.44 and 119,609.70

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Solution

The fourth proportional to 220,211.70, 303,892.44 and 119,609.70 is: 165,061.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,211.70 : 303,892.44 = 119,609.70 : x
  2. Step 2: Convert to fraction form
    220,211.70/303,892.44 = 119,609.70/x
  3. Step 3: Cross multiply
    220,211.70x = 303,892.44 × 119,609.70
  4. Step 4: Simplify right side
    220,211.70x = 36,348,483,580.67
  5. Step 5: Solve for x
    x = 36,348,483,580.67/220,211.70
  6. Step 6: Final answer
    x = 165,061.55

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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.