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Finding the Fourth Proportional to 183,891.72, 275,641.56 and 104,835.72

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Solution

The fourth proportional to 183,891.72, 275,641.56 and 104,835.72 is: 157,141.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,891.72 : 275,641.56 = 104,835.72 : x
  2. Step 2: Convert to fraction form
    183,891.72/275,641.56 = 104,835.72/x
  3. Step 3: Cross multiply
    183,891.72x = 275,641.56 × 104,835.72
  4. Step 4: Simplify right side
    183,891.72x = 28,897,081,404.52
  5. Step 5: Solve for x
    x = 28,897,081,404.52/183,891.72
  6. Step 6: Final answer
    x = 157,141.83

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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.