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Finding the Fourth Proportional to 289,171.76, 399,072.30 and 181,702.04

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Solution

The fourth proportional to 289,171.76, 399,072.30 and 181,702.04 is: 250,758.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,171.76 : 399,072.30 = 181,702.04 : x
  2. Step 2: Convert to fraction form
    289,171.76/399,072.30 = 181,702.04/x
  3. Step 3: Cross multiply
    289,171.76x = 399,072.30 × 181,702.04
  4. Step 4: Simplify right side
    289,171.76x = 72,512,251,017.49
  5. Step 5: Solve for x
    x = 72,512,251,017.49/289,171.76
  6. Step 6: Final answer
    x = 250,758.41

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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.