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Finding the Fourth Proportional to 73,524.60, 109,995.30 and 63,772.20

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Solution

The fourth proportional to 73,524.60, 109,995.30 and 63,772.20 is: 95,405.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,524.60 : 109,995.30 = 63,772.20 : x
  2. Step 2: Convert to fraction form
    73,524.60/109,995.30 = 63,772.20/x
  3. Step 3: Cross multiply
    73,524.60x = 109,995.30 × 63,772.20
  4. Step 4: Simplify right side
    73,524.60x = 7,014,642,270.66
  5. Step 5: Solve for x
    x = 7,014,642,270.66/73,524.60
  6. Step 6: Final answer
    x = 95,405.38

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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.