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Finding the Fourth Proportional to 158,787.96, 238,254.66 and 68,858.22

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Solution

The fourth proportional to 158,787.96, 238,254.66 and 68,858.22 is: 103,318.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,787.96 : 238,254.66 = 68,858.22 : x
  2. Step 2: Convert to fraction form
    158,787.96/238,254.66 = 68,858.22/x
  3. Step 3: Cross multiply
    158,787.96x = 238,254.66 × 68,858.22
  4. Step 4: Simplify right side
    158,787.96x = 16,405,791,794.31
  5. Step 5: Solve for x
    x = 16,405,791,794.31/158,787.96
  6. Step 6: Final answer
    x = 103,318.86

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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.