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Finding the Fourth Proportional to 248,591.85, 372,902.51 and 77,845.50

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Solution

The fourth proportional to 248,591.85, 372,902.51 and 77,845.50 is: 116,772.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,591.85 : 372,902.51 = 77,845.50 : x
  2. Step 2: Convert to fraction form
    248,591.85/372,902.51 = 77,845.50/x
  3. Step 3: Cross multiply
    248,591.85x = 372,902.51 × 77,845.50
  4. Step 4: Simplify right side
    248,591.85x = 29,028,782,342.21
  5. Step 5: Solve for x
    x = 29,028,782,342.21/248,591.85
  6. Step 6: Final answer
    x = 116,772.86

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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.