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Finding the Fourth Proportional to 73,242.96, 109,863.64 and 55,582.11

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Solution

The fourth proportional to 73,242.96, 109,863.64 and 55,582.11 is: 83,372.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,242.96 : 109,863.64 = 55,582.11 : x
  2. Step 2: Convert to fraction form
    73,242.96/109,863.64 = 55,582.11/x
  3. Step 3: Cross multiply
    73,242.96x = 109,863.64 × 55,582.11
  4. Step 4: Simplify right side
    73,242.96x = 6,106,452,992.96
  5. Step 5: Solve for x
    x = 6,106,452,992.96/73,242.96
  6. Step 6: Final answer
    x = 83,372.56

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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.