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Finding the Fourth Proportional to 73,252.64, 109,881.66 and 20,663.53

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Solution

The fourth proportional to 73,252.64, 109,881.66 and 20,663.53 is: 30,996.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,252.64 : 109,881.66 = 20,663.53 : x
  2. Step 2: Convert to fraction form
    73,252.64/109,881.66 = 20,663.53/x
  3. Step 3: Cross multiply
    73,252.64x = 109,881.66 × 20,663.53
  4. Step 4: Simplify right side
    73,252.64x = 2,270,542,977.86
  5. Step 5: Solve for x
    x = 2,270,542,977.86/73,252.64
  6. Step 6: Final answer
    x = 30,996.06

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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.