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Finding the Fourth Proportional to 617,235, 925,758.94 and 167,990.88

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Solution

The fourth proportional to 617,235, 925,758.94 and 167,990.88 is: 251,960.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,235 : 925,758.94 = 167,990.88 : x
  2. Step 2: Convert to fraction form
    617,235/925,758.94 = 167,990.88/x
  3. Step 3: Cross multiply
    617,235x = 925,758.94 × 167,990.88
  4. Step 4: Simplify right side
    617,235x = 155,519,054,789.65
  5. Step 5: Solve for x
    x = 155,519,054,789.65/617,235
  6. Step 6: Final answer
    x = 251,960.85

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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.