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Finding the Fourth Proportional to 62,361.90, 86,120.01 and 53,356.73

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Solution

The fourth proportional to 62,361.90, 86,120.01 and 53,356.73 is: 73,684.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,361.90 : 86,120.01 = 53,356.73 : x
  2. Step 2: Convert to fraction form
    62,361.90/86,120.01 = 53,356.73/x
  3. Step 3: Cross multiply
    62,361.90x = 86,120.01 × 53,356.73
  4. Step 4: Simplify right side
    62,361.90x = 4,595,081,690.57
  5. Step 5: Solve for x
    x = 4,595,081,690.57/62,361.90
  6. Step 6: Final answer
    x = 73,684.12

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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.