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Finding the Fourth Proportional to 272,702.56, 408,916.96 and 158,887.21

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Solution

The fourth proportional to 272,702.56, 408,916.96 and 158,887.21 is: 238,251.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,702.56 : 408,916.96 = 158,887.21 : x
  2. Step 2: Convert to fraction form
    272,702.56/408,916.96 = 158,887.21/x
  3. Step 3: Cross multiply
    272,702.56x = 408,916.96 × 158,887.21
  4. Step 4: Simplify right side
    272,702.56x = 64,971,673,476.57
  5. Step 5: Solve for x
    x = 64,971,673,476.57/272,702.56
  6. Step 6: Final answer
    x = 238,251.06

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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.