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Finding the Fourth Proportional to 64,976.76, 97,363.08 and 50,221.80

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Solution

The fourth proportional to 64,976.76, 97,363.08 and 50,221.80 is: 75,253.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,976.76 : 97,363.08 = 50,221.80 : x
  2. Step 2: Convert to fraction form
    64,976.76/97,363.08 = 50,221.80/x
  3. Step 3: Cross multiply
    64,976.76x = 97,363.08 × 50,221.80
  4. Step 4: Simplify right side
    64,976.76x = 4,889,749,131.14
  5. Step 5: Solve for x
    x = 4,889,749,131.14/64,976.76
  6. Step 6: Final answer
    x = 75,253.82

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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.