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Finding the Fourth Proportional to 76,669.93, 115,000.03 and 36,717.39

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Solution

The fourth proportional to 76,669.93, 115,000.03 and 36,717.39 is: 55,073.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,669.93 : 115,000.03 = 36,717.39 : x
  2. Step 2: Convert to fraction form
    76,669.93/115,000.03 = 36,717.39/x
  3. Step 3: Cross multiply
    76,669.93x = 115,000.03 × 36,717.39
  4. Step 4: Simplify right side
    76,669.93x = 4,222,500,951.52
  5. Step 5: Solve for x
    x = 4,222,500,951.52/76,669.93
  6. Step 6: Final answer
    x = 55,073.76

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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.