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Finding the Fourth Proportional to 220,808.40, 331,230.60 and 94,449.60

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Solution

The fourth proportional to 220,808.40, 331,230.60 and 94,449.60 is: 141,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,808.40 : 331,230.60 = 94,449.60 : x
  2. Step 2: Convert to fraction form
    220,808.40/331,230.60 = 94,449.60/x
  3. Step 3: Cross multiply
    220,808.40x = 331,230.60 × 94,449.60
  4. Step 4: Simplify right side
    220,808.40x = 31,284,597,677.76
  5. Step 5: Solve for x
    x = 31,284,597,677.76/220,808.40
  6. Step 6: Final answer
    x = 141,682.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.