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Finding the Fourth Proportional to 268,611.29, 370,685.90 and 146,104.65

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Solution

The fourth proportional to 268,611.29, 370,685.90 and 146,104.65 is: 201,625.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,611.29 : 370,685.90 = 146,104.65 : x
  2. Step 2: Convert to fraction form
    268,611.29/370,685.90 = 146,104.65/x
  3. Step 3: Cross multiply
    268,611.29x = 370,685.90 × 146,104.65
  4. Step 4: Simplify right side
    268,611.29x = 54,158,933,679.44
  5. Step 5: Solve for x
    x = 54,158,933,679.44/268,611.29
  6. Step 6: Final answer
    x = 201,625.68

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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.