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Finding the Fourth Proportional to 393,771.44, 590,665.52 and 141,068.36

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Solution

The fourth proportional to 393,771.44, 590,665.52 and 141,068.36 is: 211,605.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,771.44 : 590,665.52 = 141,068.36 : x
  2. Step 2: Convert to fraction form
    393,771.44/590,665.52 = 141,068.36/x
  3. Step 3: Cross multiply
    393,771.44x = 590,665.52 × 141,068.36
  4. Step 4: Simplify right side
    393,771.44x = 83,324,216,214.95
  5. Step 5: Solve for x
    x = 83,324,216,214.95/393,771.44
  6. Step 6: Final answer
    x = 211,605.53

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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.