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Finding the Fourth Proportional to 271,323.96, 405,009.86 and 251,312.91

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Solution

The fourth proportional to 271,323.96, 405,009.86 and 251,312.91 is: 375,139.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,323.96 : 405,009.86 = 251,312.91 : x
  2. Step 2: Convert to fraction form
    271,323.96/405,009.86 = 251,312.91/x
  3. Step 3: Cross multiply
    271,323.96x = 405,009.86 × 251,312.91
  4. Step 4: Simplify right side
    271,323.96x = 101,784,205,238.73
  5. Step 5: Solve for x
    x = 101,784,205,238.73/271,323.96
  6. Step 6: Final answer
    x = 375,139.02

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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.