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Finding the Fourth Proportional to 73,699.30, 110,529.82 and 21,096.48

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Solution

The fourth proportional to 73,699.30, 110,529.82 and 21,096.48 is: 31,639.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,699.30 : 110,529.82 = 21,096.48 : x
  2. Step 2: Convert to fraction form
    73,699.30/110,529.82 = 21,096.48/x
  3. Step 3: Cross multiply
    73,699.30x = 110,529.82 × 21,096.48
  4. Step 4: Simplify right side
    73,699.30x = 2,331,790,459.22
  5. Step 5: Solve for x
    x = 2,331,790,459.22/73,699.30
  6. Step 6: Final answer
    x = 31,639.25

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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.