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Finding the Fourth Proportional to 71,361.74, 98,477.96 and 39,529.98

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Solution

The fourth proportional to 71,361.74, 98,477.96 and 39,529.98 is: 54,550.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,361.74 : 98,477.96 = 39,529.98 : x
  2. Step 2: Convert to fraction form
    71,361.74/98,477.96 = 39,529.98/x
  3. Step 3: Cross multiply
    71,361.74x = 98,477.96 × 39,529.98
  4. Step 4: Simplify right side
    71,361.74x = 3,892,831,789.24
  5. Step 5: Solve for x
    x = 3,892,831,789.24/71,361.74
  6. Step 6: Final answer
    x = 54,550.68

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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.