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Finding the Fourth Proportional to 251,696.96, 377,536.80 and 74,196.80

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Solution

The fourth proportional to 251,696.96, 377,536.80 and 74,196.80 is: 111,292.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,696.96 : 377,536.80 = 74,196.80 : x
  2. Step 2: Convert to fraction form
    251,696.96/377,536.80 = 74,196.80/x
  3. Step 3: Cross multiply
    251,696.96x = 377,536.80 × 74,196.80
  4. Step 4: Simplify right side
    251,696.96x = 28,012,022,442.24
  5. Step 5: Solve for x
    x = 28,012,022,442.24/251,696.96
  6. Step 6: Final answer
    x = 111,292.65

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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.