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Finding the Fourth Proportional to 253,933.60, 350,403.60 and 140,753.92

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Solution

The fourth proportional to 253,933.60, 350,403.60 and 140,753.92 is: 194,226.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,933.60 : 350,403.60 = 140,753.92 : x
  2. Step 2: Convert to fraction form
    253,933.60/350,403.60 = 140,753.92/x
  3. Step 3: Cross multiply
    253,933.60x = 350,403.60 × 140,753.92
  4. Step 4: Simplify right side
    253,933.60x = 49,320,680,282.11
  5. Step 5: Solve for x
    x = 49,320,680,282.11/253,933.60
  6. Step 6: Final answer
    x = 194,226.68

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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.