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Finding the Fourth Proportional to 178,239.08, 267,388.36 and 65,919.56

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Solution

The fourth proportional to 178,239.08, 267,388.36 and 65,919.56 is: 98,890.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,239.08 : 267,388.36 = 65,919.56 : x
  2. Step 2: Convert to fraction form
    178,239.08/267,388.36 = 65,919.56/x
  3. Step 3: Cross multiply
    178,239.08x = 267,388.36 × 65,919.56
  4. Step 4: Simplify right side
    178,239.08x = 17,626,121,538.58
  5. Step 5: Solve for x
    x = 17,626,121,538.58/178,239.08
  6. Step 6: Final answer
    x = 98,890.33

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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.