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Finding the Fourth Proportional to 84,334.53, 126,399.48 and 61,940.24

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Solution

The fourth proportional to 84,334.53, 126,399.48 and 61,940.24 is: 92,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,334.53 : 126,399.48 = 61,940.24 : x
  2. Step 2: Convert to fraction form
    84,334.53/126,399.48 = 61,940.24/x
  3. Step 3: Cross multiply
    84,334.53x = 126,399.48 × 61,940.24
  4. Step 4: Simplify right side
    84,334.53x = 7,829,214,127.08
  5. Step 5: Solve for x
    x = 7,829,214,127.08/84,334.53
  6. Step 6: Final answer
    x = 92,835.21

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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.