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Finding the Fourth Proportional to 271,472.45, 374,649.70 and 156,755.93

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Solution

The fourth proportional to 271,472.45, 374,649.70 and 156,755.93 is: 216,333.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,472.45 : 374,649.70 = 156,755.93 : x
  2. Step 2: Convert to fraction form
    271,472.45/374,649.70 = 156,755.93/x
  3. Step 3: Cross multiply
    271,472.45x = 374,649.70 × 156,755.93
  4. Step 4: Simplify right side
    271,472.45x = 58,728,562,147.72
  5. Step 5: Solve for x
    x = 58,728,562,147.72/271,472.45
  6. Step 6: Final answer
    x = 216,333.41

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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.