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Finding the Fourth Proportional to 114,517.20, 171,811.80 and 55,354.80

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Solution

The fourth proportional to 114,517.20, 171,811.80 and 55,354.80 is: 83,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,517.20 : 171,811.80 = 55,354.80 : x
  2. Step 2: Convert to fraction form
    114,517.20/171,811.80 = 55,354.80/x
  3. Step 3: Cross multiply
    114,517.20x = 171,811.80 × 55,354.80
  4. Step 4: Simplify right side
    114,517.20x = 9,510,607,826.64
  5. Step 5: Solve for x
    x = 9,510,607,826.64/114,517.20
  6. Step 6: Final answer
    x = 83,049.60

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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.