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Finding the Fourth Proportional to 531,716.85, 797,571.18 and 132,354.90

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Solution

The fourth proportional to 531,716.85, 797,571.18 and 132,354.90 is: 198,531.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,716.85 : 797,571.18 = 132,354.90 : x
  2. Step 2: Convert to fraction form
    531,716.85/797,571.18 = 132,354.90/x
  3. Step 3: Cross multiply
    531,716.85x = 797,571.18 × 132,354.90
  4. Step 4: Simplify right side
    531,716.85x = 105,562,453,771.78
  5. Step 5: Solve for x
    x = 105,562,453,771.78/531,716.85
  6. Step 6: Final answer
    x = 198,531.33

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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.