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Finding the Fourth Proportional to 114,194.80, 171,446.10 and 66,858.40

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Solution

The fourth proportional to 114,194.80, 171,446.10 and 66,858.40 is: 100,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,194.80 : 171,446.10 = 66,858.40 : x
  2. Step 2: Convert to fraction form
    114,194.80/171,446.10 = 66,858.40/x
  3. Step 3: Cross multiply
    114,194.80x = 171,446.10 × 66,858.40
  4. Step 4: Simplify right side
    114,194.80x = 11,462,611,932.24
  5. Step 5: Solve for x
    x = 11,462,611,932.24/114,194.80
  6. Step 6: Final answer
    x = 100,377.70

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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.