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Finding the Fourth Proportional to 156,893.82, 217,083.41 and 136,792.52

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Solution

The fourth proportional to 156,893.82, 217,083.41 and 136,792.52 is: 189,270.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,893.82 : 217,083.41 = 136,792.52 : x
  2. Step 2: Convert to fraction form
    156,893.82/217,083.41 = 136,792.52/x
  3. Step 3: Cross multiply
    156,893.82x = 217,083.41 × 136,792.52
  4. Step 4: Simplify right side
    156,893.82x = 29,695,386,704.09
  5. Step 5: Solve for x
    x = 29,695,386,704.09/156,893.82
  6. Step 6: Final answer
    x = 189,270.60

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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.