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Finding the Fourth Proportional to 351,893.57, 527,870.93 and 99,175.73

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Solution

The fourth proportional to 351,893.57, 527,870.93 and 99,175.73 is: 148,772.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,893.57 : 527,870.93 = 99,175.73 : x
  2. Step 2: Convert to fraction form
    351,893.57/527,870.93 = 99,175.73/x
  3. Step 3: Cross multiply
    351,893.57x = 527,870.93 × 99,175.73
  4. Step 4: Simplify right side
    351,893.57x = 52,351,981,693.30
  5. Step 5: Solve for x
    x = 52,351,981,693.30/351,893.57
  6. Step 6: Final answer
    x = 148,772.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.