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Finding the Fourth Proportional to 235,874.87, 325,456.54 and 140,362.91

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Solution

The fourth proportional to 235,874.87, 325,456.54 and 140,362.91 is: 193,670.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,874.87 : 325,456.54 = 140,362.91 : x
  2. Step 2: Convert to fraction form
    235,874.87/325,456.54 = 140,362.91/x
  3. Step 3: Cross multiply
    235,874.87x = 325,456.54 × 140,362.91
  4. Step 4: Simplify right side
    235,874.87x = 45,682,025,054.74
  5. Step 5: Solve for x
    x = 45,682,025,054.74/235,874.87
  6. Step 6: Final answer
    x = 193,670.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.