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Finding the Fourth Proportional to 150,046.40, 207,055.68 and 82,049.84

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Solution

The fourth proportional to 150,046.40, 207,055.68 and 82,049.84 is: 113,224.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,046.40 : 207,055.68 = 82,049.84 : x
  2. Step 2: Convert to fraction form
    150,046.40/207,055.68 = 82,049.84/x
  3. Step 3: Cross multiply
    150,046.40x = 207,055.68 × 82,049.84
  4. Step 4: Simplify right side
    150,046.40x = 16,988,885,415.09
  5. Step 5: Solve for x
    x = 16,988,885,415.09/150,046.40
  6. Step 6: Final answer
    x = 113,224.21

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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.