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Finding the Fourth Proportional to 76,951.88, 115,420.25 and 37,536.20

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Solution

The fourth proportional to 76,951.88, 115,420.25 and 37,536.20 is: 56,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,951.88 : 115,420.25 = 37,536.20 : x
  2. Step 2: Convert to fraction form
    76,951.88/115,420.25 = 37,536.20/x
  3. Step 3: Cross multiply
    76,951.88x = 115,420.25 × 37,536.20
  4. Step 4: Simplify right side
    76,951.88x = 4,332,437,104.79
  5. Step 5: Solve for x
    x = 4,332,437,104.79/76,951.88
  6. Step 6: Final answer
    x = 56,300.60

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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.