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Finding the Fourth Proportional to 393,777.43, 590,666.13 and 113,294.68

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Solution

The fourth proportional to 393,777.43, 590,666.13 and 113,294.68 is: 169,942.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,777.43 : 590,666.13 = 113,294.68 : x
  2. Step 2: Convert to fraction form
    393,777.43/590,666.13 = 113,294.68/x
  3. Step 3: Cross multiply
    393,777.43x = 590,666.13 × 113,294.68
  4. Step 4: Simplify right side
    393,777.43x = 66,919,328,708.52
  5. Step 5: Solve for x
    x = 66,919,328,708.52/393,777.43
  6. Step 6: Final answer
    x = 169,942.01

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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.