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Finding the Fourth Proportional to 183,889.92, 275,670.72 and 78,654.72

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Solution

The fourth proportional to 183,889.92, 275,670.72 and 78,654.72 is: 117,911.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,889.92 : 275,670.72 = 78,654.72 : x
  2. Step 2: Convert to fraction form
    183,889.92/275,670.72 = 78,654.72/x
  3. Step 3: Cross multiply
    183,889.92x = 275,670.72 × 78,654.72
  4. Step 4: Simplify right side
    183,889.92x = 21,682,803,293.80
  5. Step 5: Solve for x
    x = 21,682,803,293.80/183,889.92
  6. Step 6: Final answer
    x = 117,911.86

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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.