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Finding the Fourth Proportional to 203,693.17, 305,551.42 and 53,929.56

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Solution

The fourth proportional to 203,693.17, 305,551.42 and 53,929.56 is: 80,897.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,693.17 : 305,551.42 = 53,929.56 : x
  2. Step 2: Convert to fraction form
    203,693.17/305,551.42 = 53,929.56/x
  3. Step 3: Cross multiply
    203,693.17x = 305,551.42 × 53,929.56
  4. Step 4: Simplify right side
    203,693.17x = 16,478,252,500.56
  5. Step 5: Solve for x
    x = 16,478,252,500.56/203,693.17
  6. Step 6: Final answer
    x = 80,897.42

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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.