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Finding the Fourth Proportional to 104,178.80, 143,731.08 and 67,863.44

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Solution

The fourth proportional to 104,178.80, 143,731.08 and 67,863.44 is: 93,628.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,178.80 : 143,731.08 = 67,863.44 : x
  2. Step 2: Convert to fraction form
    104,178.80/143,731.08 = 67,863.44/x
  3. Step 3: Cross multiply
    104,178.80x = 143,731.08 × 67,863.44
  4. Step 4: Simplify right side
    104,178.80x = 9,754,085,523.72
  5. Step 5: Solve for x
    x = 9,754,085,523.72/104,178.80
  6. Step 6: Final answer
    x = 93,628.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.