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Finding the Fourth Proportional to 253,894.12, 350,374.17 and 140,716.96

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Solution

The fourth proportional to 253,894.12, 350,374.17 and 140,716.96 is: 194,189.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,894.12 : 350,374.17 = 140,716.96 : x
  2. Step 2: Convert to fraction form
    253,894.12/350,374.17 = 140,716.96/x
  3. Step 3: Cross multiply
    253,894.12x = 350,374.17 × 140,716.96
  4. Step 4: Simplify right side
    253,894.12x = 49,303,588,064.92
  5. Step 5: Solve for x
    x = 49,303,588,064.92/253,894.12
  6. Step 6: Final answer
    x = 194,189.56

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1.5x scale

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.