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Finding the Fourth Proportional to 363,987.72, 545,983.02 and 111,267.27

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Solution

The fourth proportional to 363,987.72, 545,983.02 and 111,267.27 is: 166,901.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,987.72 : 545,983.02 = 111,267.27 : x
  2. Step 2: Convert to fraction form
    363,987.72/545,983.02 = 111,267.27/x
  3. Step 3: Cross multiply
    363,987.72x = 545,983.02 × 111,267.27
  4. Step 4: Simplify right side
    363,987.72x = 60,750,040,101.76
  5. Step 5: Solve for x
    x = 60,750,040,101.76/363,987.72
  6. Step 6: Final answer
    x = 166,901.35

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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.