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Finding the Fourth Proportional to 251,192.96, 376,468.32 and 117,778.88

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Solution

The fourth proportional to 251,192.96, 376,468.32 and 117,778.88 is: 176,517.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,192.96 : 376,468.32 = 117,778.88 : x
  2. Step 2: Convert to fraction form
    251,192.96/376,468.32 = 117,778.88/x
  3. Step 3: Cross multiply
    251,192.96x = 376,468.32 × 117,778.88
  4. Step 4: Simplify right side
    251,192.96x = 44,340,017,085.08
  5. Step 5: Solve for x
    x = 44,340,017,085.08/251,192.96
  6. Step 6: Final answer
    x = 176,517.75

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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.