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Finding the Fourth Proportional to 220,105.76, 303,745.93 and 119,503.76

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Solution

The fourth proportional to 220,105.76, 303,745.93 and 119,503.76 is: 164,915.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,105.76 : 303,745.93 = 119,503.76 : x
  2. Step 2: Convert to fraction form
    220,105.76/303,745.93 = 119,503.76/x
  3. Step 3: Cross multiply
    220,105.76x = 303,745.93 × 119,503.76
  4. Step 4: Simplify right side
    220,105.76x = 36,298,780,719.70
  5. Step 5: Solve for x
    x = 36,298,780,719.70/220,105.76
  6. Step 6: Final answer
    x = 164,915.18

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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.