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Finding the Fourth Proportional to 158,763.42, 238,079.43 and 67,540.14

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Solution

The fourth proportional to 158,763.42, 238,079.43 and 67,540.14 is: 101,282.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,763.42 : 238,079.43 = 67,540.14 : x
  2. Step 2: Convert to fraction form
    158,763.42/238,079.43 = 67,540.14/x
  3. Step 3: Cross multiply
    158,763.42x = 238,079.43 × 67,540.14
  4. Step 4: Simplify right side
    158,763.42x = 16,079,918,033.32
  5. Step 5: Solve for x
    x = 16,079,918,033.32/158,763.42
  6. Step 6: Final answer
    x = 101,282.26

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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.