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Finding the Fourth Proportional to 547,037.61, 820,621.94 and 167,908.69

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Solution

The fourth proportional to 547,037.61, 820,621.94 and 167,908.69 is: 251,883.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,037.61 : 820,621.94 = 167,908.69 : x
  2. Step 2: Convert to fraction form
    547,037.61/820,621.94 = 167,908.69/x
  3. Step 3: Cross multiply
    547,037.61x = 820,621.94 × 167,908.69
  4. Step 4: Simplify right side
    547,037.61x = 137,789,554,930.66
  5. Step 5: Solve for x
    x = 137,789,554,930.66/547,037.61
  6. Step 6: Final answer
    x = 251,883.15

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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.