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Finding the Fourth Proportional to 283,880.67, 391,755.69 and 154,819.42

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Solution

The fourth proportional to 283,880.67, 391,755.69 and 154,819.42 is: 213,651.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,880.67 : 391,755.69 = 154,819.42 : x
  2. Step 2: Convert to fraction form
    283,880.67/391,755.69 = 154,819.42/x
  3. Step 3: Cross multiply
    283,880.67x = 391,755.69 × 154,819.42
  4. Step 4: Simplify right side
    283,880.67x = 60,651,387,728.11
  5. Step 5: Solve for x
    x = 60,651,387,728.11/283,880.67
  6. Step 6: Final answer
    x = 213,651.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.