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Finding the Fourth Proportional to 114,179.80, 171,423.60 and 66,843.40

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Solution

The fourth proportional to 114,179.80, 171,423.60 and 66,843.40 is: 100,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,179.80 : 171,423.60 = 66,843.40 : x
  2. Step 2: Convert to fraction form
    114,179.80/171,423.60 = 66,843.40/x
  3. Step 3: Cross multiply
    114,179.80x = 171,423.60 × 66,843.40
  4. Step 4: Simplify right side
    114,179.80x = 11,458,536,264.24
  5. Step 5: Solve for x
    x = 11,458,536,264.24/114,179.80
  6. Step 6: Final answer
    x = 100,355.20

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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.