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Finding the Fourth Proportional to 251,318.10, 376,940.70 and 73,806.60

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Solution

The fourth proportional to 251,318.10, 376,940.70 and 73,806.60 is: 110,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,318.10 : 376,940.70 = 73,806.60 : x
  2. Step 2: Convert to fraction form
    251,318.10/376,940.70 = 73,806.60/x
  3. Step 3: Cross multiply
    251,318.10x = 376,940.70 × 73,806.60
  4. Step 4: Simplify right side
    251,318.10x = 27,820,711,468.62
  5. Step 5: Solve for x
    x = 27,820,711,468.62/251,318.10
  6. Step 6: Final answer
    x = 110,699.20

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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.