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Finding the Fourth Proportional to 109,342.60, 164,086.80 and 50,147.80

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Solution

The fourth proportional to 109,342.60, 164,086.80 and 50,147.80 is: 75,255.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,342.60 : 164,086.80 = 50,147.80 : x
  2. Step 2: Convert to fraction form
    109,342.60/164,086.80 = 50,147.80/x
  3. Step 3: Cross multiply
    109,342.60x = 164,086.80 × 50,147.80
  4. Step 4: Simplify right side
    109,342.60x = 8,228,592,029.04
  5. Step 5: Solve for x
    x = 8,228,592,029.04/109,342.60
  6. Step 6: Final answer
    x = 75,255.13

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1.5x scale

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.