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Finding the Fourth Proportional to 220,163.84, 303,819.96 and 124,679.60

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Solution

The fourth proportional to 220,163.84, 303,819.96 and 124,679.60 is: 172,054.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,163.84 : 303,819.96 = 124,679.60 : x
  2. Step 2: Convert to fraction form
    220,163.84/303,819.96 = 124,679.60/x
  3. Step 3: Cross multiply
    220,163.84x = 303,819.96 × 124,679.60
  4. Step 4: Simplify right side
    220,163.84x = 37,880,151,084.82
  5. Step 5: Solve for x
    x = 37,880,151,084.82/220,163.84
  6. Step 6: Final answer
    x = 172,054.37

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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.