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Finding the Fourth Proportional to 161,887.91, 242,814.45 and 43,571.21

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Solution

The fourth proportional to 161,887.91, 242,814.45 and 43,571.21 is: 65,352.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,887.91 : 242,814.45 = 43,571.21 : x
  2. Step 2: Convert to fraction form
    161,887.91/242,814.45 = 43,571.21/x
  3. Step 3: Cross multiply
    161,887.91x = 242,814.45 × 43,571.21
  4. Step 4: Simplify right side
    161,887.91x = 10,579,719,391.98
  5. Step 5: Solve for x
    x = 10,579,719,391.98/161,887.91
  6. Step 6: Final answer
    x = 65,352.13

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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.