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Finding the Fourth Proportional to 251,624.72, 377,457.57 and 71,723.90

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Solution

The fourth proportional to 251,624.72, 377,457.57 and 71,723.90 is: 107,591.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,624.72 : 377,457.57 = 71,723.90 : x
  2. Step 2: Convert to fraction form
    251,624.72/377,457.57 = 71,723.90/x
  3. Step 3: Cross multiply
    251,624.72x = 377,457.57 × 71,723.90
  4. Step 4: Simplify right side
    251,624.72x = 27,072,729,004.92
  5. Step 5: Solve for x
    x = 27,072,729,004.92/251,624.72
  6. Step 6: Final answer
    x = 107,591.69

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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.