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Finding the Fourth Proportional to 76,491.18, 114,654.74 and 36,993.96

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Solution

The fourth proportional to 76,491.18, 114,654.74 and 36,993.96 is: 55,451.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,491.18 : 114,654.74 = 36,993.96 : x
  2. Step 2: Convert to fraction form
    76,491.18/114,654.74 = 36,993.96/x
  3. Step 3: Cross multiply
    76,491.18x = 114,654.74 × 36,993.96
  4. Step 4: Simplify right side
    76,491.18x = 4,241,532,680.40
  5. Step 5: Solve for x
    x = 4,241,532,680.40/76,491.18
  6. Step 6: Final answer
    x = 55,451.26

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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.