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Finding the Fourth Proportional to 245,234.25, 367,652.79 and 76,667.72

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Solution

The fourth proportional to 245,234.25, 367,652.79 and 76,667.72 is: 114,939.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,234.25 : 367,652.79 = 76,667.72 : x
  2. Step 2: Convert to fraction form
    245,234.25/367,652.79 = 76,667.72/x
  3. Step 3: Cross multiply
    245,234.25x = 367,652.79 × 76,667.72
  4. Step 4: Simplify right side
    245,234.25x = 28,187,099,322.67
  5. Step 5: Solve for x
    x = 28,187,099,322.67/245,234.25
  6. Step 6: Final answer
    x = 114,939.49

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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.