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Finding the Fourth Proportional to 347,253.40, 520,908.90 and 110,589.40

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Solution

The fourth proportional to 347,253.40, 520,908.90 and 110,589.40 is: 165,893.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,253.40 : 520,908.90 = 110,589.40 : x
  2. Step 2: Convert to fraction form
    347,253.40/520,908.90 = 110,589.40/x
  3. Step 3: Cross multiply
    347,253.40x = 520,908.90 × 110,589.40
  4. Step 4: Simplify right side
    347,253.40x = 57,607,002,705.66
  5. Step 5: Solve for x
    x = 57,607,002,705.66/347,253.40
  6. Step 6: Final answer
    x = 165,893.27

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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.