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Finding the Fourth Proportional to 73,269.99, 109,904.58 and 20,679.26

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Solution

The fourth proportional to 73,269.99, 109,904.58 and 20,679.26 is: 31,018.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,269.99 : 109,904.58 = 20,679.26 : x
  2. Step 2: Convert to fraction form
    73,269.99/109,904.58 = 20,679.26/x
  3. Step 3: Cross multiply
    73,269.99x = 109,904.58 × 20,679.26
  4. Step 4: Simplify right side
    73,269.99x = 2,272,744,835.49
  5. Step 5: Solve for x
    x = 2,272,744,835.49/73,269.99
  6. Step 6: Final answer
    x = 31,018.77

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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.