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Finding the Fourth Proportional to 272,755.08, 376,401.60 and 151,906.86

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Solution

The fourth proportional to 272,755.08, 376,401.60 and 151,906.86 is: 209,631.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,755.08 : 376,401.60 = 151,906.86 : x
  2. Step 2: Convert to fraction form
    272,755.08/376,401.60 = 151,906.86/x
  3. Step 3: Cross multiply
    272,755.08x = 376,401.60 × 151,906.86
  4. Step 4: Simplify right side
    272,755.08x = 57,177,985,154.98
  5. Step 5: Solve for x
    x = 57,177,985,154.98/272,755.08
  6. Step 6: Final answer
    x = 209,631.24

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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.