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Finding the Fourth Proportional to 168,603.90, 252,869.40 and 73,833.90

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Solution

The fourth proportional to 168,603.90, 252,869.40 and 73,833.90 is: 110,734.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,603.90 : 252,869.40 = 73,833.90 : x
  2. Step 2: Convert to fraction form
    168,603.90/252,869.40 = 73,833.90/x
  3. Step 3: Cross multiply
    168,603.90x = 252,869.40 × 73,833.90
  4. Step 4: Simplify right side
    168,603.90x = 18,670,333,992.66
  5. Step 5: Solve for x
    x = 18,670,333,992.66/168,603.90
  6. Step 6: Final answer
    x = 110,734.89

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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.