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Finding the Fourth Proportional to 159,612.44, 239,422.30 and 47,290.55

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Solution

The fourth proportional to 159,612.44, 239,422.30 and 47,290.55 is: 70,936.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,612.44 : 239,422.30 = 47,290.55 : x
  2. Step 2: Convert to fraction form
    159,612.44/239,422.30 = 47,290.55/x
  3. Step 3: Cross multiply
    159,612.44x = 239,422.30 × 47,290.55
  4. Step 4: Simplify right side
    159,612.44x = 11,322,411,768.94
  5. Step 5: Solve for x
    x = 11,322,411,768.94/159,612.44
  6. Step 6: Final answer
    x = 70,936.90

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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.