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Finding the Fourth Proportional to 271,358.92, 405,061.88 and 251,347.78

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Solution

The fourth proportional to 271,358.92, 405,061.88 and 251,347.78 is: 375,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,358.92 : 405,061.88 = 251,347.78 : x
  2. Step 2: Convert to fraction form
    271,358.92/405,061.88 = 251,347.78/x
  3. Step 3: Cross multiply
    271,358.92x = 405,061.88 × 251,347.78
  4. Step 4: Simplify right side
    271,358.92x = 101,811,404,300.63
  5. Step 5: Solve for x
    x = 101,811,404,300.63/271,358.92
  6. Step 6: Final answer
    x = 375,190.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.