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Finding the Fourth Proportional to 144,694.98, 199,680.45 and 80,165.58

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Solution

The fourth proportional to 144,694.98, 199,680.45 and 80,165.58 is: 110,629.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,694.98 : 199,680.45 = 80,165.58 : x
  2. Step 2: Convert to fraction form
    144,694.98/199,680.45 = 80,165.58/x
  3. Step 3: Cross multiply
    144,694.98x = 199,680.45 × 80,165.58
  4. Step 4: Simplify right side
    144,694.98x = 16,007,499,088.91
  5. Step 5: Solve for x
    x = 16,007,499,088.91/144,694.98
  6. Step 6: Final answer
    x = 110,629.26

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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.