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Finding the Fourth Proportional to 140,469.99, 193,847.34 and 76,808.24

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Solution

The fourth proportional to 140,469.99, 193,847.34 and 76,808.24 is: 105,994.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,469.99 : 193,847.34 = 76,808.24 : x
  2. Step 2: Convert to fraction form
    140,469.99/193,847.34 = 76,808.24/x
  3. Step 3: Cross multiply
    140,469.99x = 193,847.34 × 76,808.24
  4. Step 4: Simplify right side
    140,469.99x = 14,889,073,014.08
  5. Step 5: Solve for x
    x = 14,889,073,014.08/140,469.99
  6. Step 6: Final answer
    x = 105,994.69

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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.