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Finding the Fourth Proportional to 215,562.86, 323,383.52 and 73,400.87

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Solution

The fourth proportional to 215,562.86, 323,383.52 and 73,400.87 is: 110,114.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,562.86 : 323,383.52 = 73,400.87 : x
  2. Step 2: Convert to fraction form
    215,562.86/323,383.52 = 73,400.87/x
  3. Step 3: Cross multiply
    215,562.86x = 323,383.52 × 73,400.87
  4. Step 4: Simplify right side
    215,562.86x = 23,736,629,727.74
  5. Step 5: Solve for x
    x = 23,736,629,727.74/215,562.86
  6. Step 6: Final answer
    x = 110,114.66

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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.