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Finding the Fourth Proportional to 61,812.30, 85,300.45 and 34,954.73

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Solution

The fourth proportional to 61,812.30, 85,300.45 and 34,954.73 is: 48,237.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,812.30 : 85,300.45 = 34,954.73 : x
  2. Step 2: Convert to fraction form
    61,812.30/85,300.45 = 34,954.73/x
  3. Step 3: Cross multiply
    61,812.30x = 85,300.45 × 34,954.73
  4. Step 4: Simplify right side
    61,812.30x = 2,981,654,198.63
  5. Step 5: Solve for x
    x = 2,981,654,198.63/61,812.30
  6. Step 6: Final answer
    x = 48,237.23

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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.