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Finding the Fourth Proportional to 159,062.78, 238,594.21 and 74,761.04

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Solution

The fourth proportional to 159,062.78, 238,594.21 and 74,761.04 is: 112,141.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,062.78 : 238,594.21 = 74,761.04 : x
  2. Step 2: Convert to fraction form
    159,062.78/238,594.21 = 74,761.04/x
  3. Step 3: Cross multiply
    159,062.78x = 238,594.21 × 74,761.04
  4. Step 4: Simplify right side
    159,062.78x = 17,837,551,277.58
  5. Step 5: Solve for x
    x = 17,837,551,277.58/159,062.78
  6. Step 6: Final answer
    x = 112,141.58

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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.