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Finding the Fourth Proportional to 159,612.32, 239,422.90 and 39,664.42

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Solution

The fourth proportional to 159,612.32, 239,422.90 and 39,664.42 is: 59,497.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,612.32 : 239,422.90 = 39,664.42 : x
  2. Step 2: Convert to fraction form
    159,612.32/239,422.90 = 39,664.42/x
  3. Step 3: Cross multiply
    159,612.32x = 239,422.90 × 39,664.42
  4. Step 4: Simplify right side
    159,612.32x = 9,496,570,463.22
  5. Step 5: Solve for x
    x = 9,496,570,463.22/159,612.32
  6. Step 6: Final answer
    x = 59,497.73

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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.