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Finding the Fourth Proportional to 224,611.48, 309,964.49 and 122,637.83

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Solution

The fourth proportional to 224,611.48, 309,964.49 and 122,637.83 is: 169,240.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,611.48 : 309,964.49 = 122,637.83 : x
  2. Step 2: Convert to fraction form
    224,611.48/309,964.49 = 122,637.83/x
  3. Step 3: Cross multiply
    224,611.48x = 309,964.49 × 122,637.83
  4. Step 4: Simplify right side
    224,611.48x = 38,013,370,727.54
  5. Step 5: Solve for x
    x = 38,013,370,727.54/224,611.48
  6. Step 6: Final answer
    x = 169,240.55

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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.