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Finding the Fourth Proportional to 266,960.36, 400,025.82 and 168,257

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Solution

The fourth proportional to 266,960.36, 400,025.82 and 168,257 is: 252,124.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,960.36 : 400,025.82 = 168,257 : x
  2. Step 2: Convert to fraction form
    266,960.36/400,025.82 = 168,257/x
  3. Step 3: Cross multiply
    266,960.36x = 400,025.82 × 168,257
  4. Step 4: Simplify right side
    266,960.36x = 67,307,144,395.74
  5. Step 5: Solve for x
    x = 67,307,144,395.74/266,960.36
  6. Step 6: Final answer
    x = 252,124.11

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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.