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Finding the Fourth Proportional to 226,578, 312,685.66 and 124,611.34

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Solution

The fourth proportional to 226,578, 312,685.66 and 124,611.34 is: 171,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,578 : 312,685.66 = 124,611.34 : x
  2. Step 2: Convert to fraction form
    226,578/312,685.66 = 124,611.34/x
  3. Step 3: Cross multiply
    226,578x = 312,685.66 × 124,611.34
  4. Step 4: Simplify right side
    226,578x = 38,964,177,527.96
  5. Step 5: Solve for x
    x = 38,964,177,527.96/226,578
  6. Step 6: Final answer
    x = 171,968.05

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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.