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Finding the Fourth Proportional to 159,643.98, 239,522.67 and 70,889.58

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Solution

The fourth proportional to 159,643.98, 239,522.67 and 70,889.58 is: 106,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,643.98 : 239,522.67 = 70,889.58 : x
  2. Step 2: Convert to fraction form
    159,643.98/239,522.67 = 70,889.58/x
  3. Step 3: Cross multiply
    159,643.98x = 239,522.67 × 70,889.58
  4. Step 4: Simplify right side
    159,643.98x = 16,979,661,476.78
  5. Step 5: Solve for x
    x = 16,979,661,476.78/159,643.98
  6. Step 6: Final answer
    x = 106,359.55

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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.