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Finding the Fourth Proportional to 159,243.26, 238,866.72 and 54,070.43

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Solution

The fourth proportional to 159,243.26, 238,866.72 and 54,070.43 is: 81,106.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,243.26 : 238,866.72 = 54,070.43 : x
  2. Step 2: Convert to fraction form
    159,243.26/238,866.72 = 54,070.43/x
  3. Step 3: Cross multiply
    159,243.26x = 238,866.72 × 54,070.43
  4. Step 4: Simplify right side
    159,243.26x = 12,915,625,992.74
  5. Step 5: Solve for x
    x = 12,915,625,992.74/159,243.26
  6. Step 6: Final answer
    x = 81,106.26

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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.