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Finding the Fourth Proportional to 266,702.66, 400,141.59 and 109,063.70

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Solution

The fourth proportional to 266,702.66, 400,141.59 and 109,063.70 is: 163,631.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,702.66 : 400,141.59 = 109,063.70 : x
  2. Step 2: Convert to fraction form
    266,702.66/400,141.59 = 109,063.70/x
  3. Step 3: Cross multiply
    266,702.66x = 400,141.59 × 109,063.70
  4. Step 4: Simplify right side
    266,702.66x = 43,640,922,329.28
  5. Step 5: Solve for x
    x = 43,640,922,329.28/266,702.66
  6. Step 6: Final answer
    x = 163,631.37

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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.