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Finding the Fourth Proportional to 354,544.53, 531,821.43 and 117,887.21

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Solution

The fourth proportional to 354,544.53, 531,821.43 and 117,887.21 is: 176,832.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,544.53 : 531,821.43 = 117,887.21 : x
  2. Step 2: Convert to fraction form
    354,544.53/531,821.43 = 117,887.21/x
  3. Step 3: Cross multiply
    354,544.53x = 531,821.43 × 117,887.21
  4. Step 4: Simplify right side
    354,544.53x = 62,694,945,635.75
  5. Step 5: Solve for x
    x = 62,694,945,635.75/354,544.53
  6. Step 6: Final answer
    x = 176,832.36

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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.