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Finding the Fourth Proportional to 251,176.71, 376,768.05 and 73,687.23

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Solution

The fourth proportional to 251,176.71, 376,768.05 and 73,687.23 is: 110,531.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,176.71 : 376,768.05 = 73,687.23 : x
  2. Step 2: Convert to fraction form
    251,176.71/376,768.05 = 73,687.23/x
  3. Step 3: Cross multiply
    251,176.71x = 376,768.05 × 73,687.23
  4. Step 4: Simplify right side
    251,176.71x = 27,762,993,957.00
  5. Step 5: Solve for x
    x = 27,762,993,957.00/251,176.71
  6. Step 6: Final answer
    x = 110,531.72

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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.