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Finding the Fourth Proportional to 159,290.60, 238,968.72 and 133,177.82

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Solution

The fourth proportional to 159,290.60, 238,968.72 and 133,177.82 is: 199,794.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,290.60 : 238,968.72 = 133,177.82 : x
  2. Step 2: Convert to fraction form
    159,290.60/238,968.72 = 133,177.82/x
  3. Step 3: Cross multiply
    159,290.60x = 238,968.72 × 133,177.82
  4. Step 4: Simplify right side
    159,290.60x = 31,825,331,982.95
  5. Step 5: Solve for x
    x = 31,825,331,982.95/159,290.60
  6. Step 6: Final answer
    x = 199,794.17

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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.