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Finding the Fourth Proportional to 224,611.22, 309,964.14 and 122,637.56

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Solution

The fourth proportional to 224,611.22, 309,964.14 and 122,637.56 is: 169,240.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,611.22 : 309,964.14 = 122,637.56 : x
  2. Step 2: Convert to fraction form
    224,611.22/309,964.14 = 122,637.56/x
  3. Step 3: Cross multiply
    224,611.22x = 309,964.14 × 122,637.56
  4. Step 4: Simplify right side
    224,611.22x = 38,013,245,817.10
  5. Step 5: Solve for x
    x = 38,013,245,817.10/224,611.22
  6. Step 6: Final answer
    x = 169,240.19

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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.