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Finding the Fourth Proportional to 114,410.40, 171,664.20 and 55,215.60

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Solution

The fourth proportional to 114,410.40, 171,664.20 and 55,215.60 is: 82,846.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,410.40 : 171,664.20 = 55,215.60 : x
  2. Step 2: Convert to fraction form
    114,410.40/171,664.20 = 55,215.60/x
  3. Step 3: Cross multiply
    114,410.40x = 171,664.20 × 55,215.60
  4. Step 4: Simplify right side
    114,410.40x = 9,478,541,801.52
  5. Step 5: Solve for x
    x = 9,478,541,801.52/114,410.40
  6. Step 6: Final answer
    x = 82,846.85

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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.