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Finding the Fourth Proportional to 159,357.15, 238,885.46 and 79,319.44

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Solution

The fourth proportional to 159,357.15, 238,885.46 and 79,319.44 is: 118,904.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,357.15 : 238,885.46 = 79,319.44 : x
  2. Step 2: Convert to fraction form
    159,357.15/238,885.46 = 79,319.44/x
  3. Step 3: Cross multiply
    159,357.15x = 238,885.46 × 79,319.44
  4. Step 4: Simplify right side
    159,357.15x = 18,948,260,911.34
  5. Step 5: Solve for x
    x = 18,948,260,911.34/159,357.15
  6. Step 6: Final answer
    x = 118,904.37

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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.