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Finding the Fourth Proportional to 76,604.62, 114,903.96 and 39,164.26

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Solution

The fourth proportional to 76,604.62, 114,903.96 and 39,164.26 is: 58,744.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,604.62 : 114,903.96 = 39,164.26 : x
  2. Step 2: Convert to fraction form
    76,604.62/114,903.96 = 39,164.26/x
  3. Step 3: Cross multiply
    76,604.62x = 114,903.96 × 39,164.26
  4. Step 4: Simplify right side
    76,604.62x = 4,500,128,564.47
  5. Step 5: Solve for x
    x = 4,500,128,564.47/76,604.62
  6. Step 6: Final answer
    x = 58,744.87

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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.