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Finding the Fourth Proportional to 272,755.64, 376,375.84 and 151,908.17

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Solution

The fourth proportional to 272,755.64, 376,375.84 and 151,908.17 is: 209,618.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,755.64 : 376,375.84 = 151,908.17 : x
  2. Step 2: Convert to fraction form
    272,755.64/376,375.84 = 151,908.17/x
  3. Step 3: Cross multiply
    272,755.64x = 376,375.84 × 151,908.17
  4. Step 4: Simplify right side
    272,755.64x = 57,174,564,327.07
  5. Step 5: Solve for x
    x = 57,174,564,327.07/272,755.64
  6. Step 6: Final answer
    x = 209,618.27

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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.