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Finding the Fourth Proportional to 159,089.70, 238,634.55 and 133,040.10

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Solution

The fourth proportional to 159,089.70, 238,634.55 and 133,040.10 is: 199,560.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,089.70 : 238,634.55 = 133,040.10 : x
  2. Step 2: Convert to fraction form
    159,089.70/238,634.55 = 133,040.10/x
  3. Step 3: Cross multiply
    159,089.70x = 238,634.55 × 133,040.10
  4. Step 4: Simplify right side
    159,089.70x = 31,747,964,395.46
  5. Step 5: Solve for x
    x = 31,747,964,395.46/159,089.70
  6. Step 6: Final answer
    x = 199,560.15

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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.