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Finding the Fourth Proportional to 180,843.40, 271,005.90 and 133,085.80

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Solution

The fourth proportional to 180,843.40, 271,005.90 and 133,085.80 is: 199,437.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,843.40 : 271,005.90 = 133,085.80 : x
  2. Step 2: Convert to fraction form
    180,843.40/271,005.90 = 133,085.80/x
  3. Step 3: Cross multiply
    180,843.40x = 271,005.90 × 133,085.80
  4. Step 4: Simplify right side
    180,843.40x = 36,067,037,006.22
  5. Step 5: Solve for x
    x = 36,067,037,006.22/180,843.40
  6. Step 6: Final answer
    x = 199,437.95

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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.