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Finding the Fourth Proportional to 347,682.60, 520,919.10 and 160,309.80

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Solution

The fourth proportional to 347,682.60, 520,919.10 and 160,309.80 is: 240,185.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,682.60 : 520,919.10 = 160,309.80 : x
  2. Step 2: Convert to fraction form
    347,682.60/520,919.10 = 160,309.80/x
  3. Step 3: Cross multiply
    347,682.60x = 520,919.10 × 160,309.80
  4. Step 4: Simplify right side
    347,682.60x = 83,508,436,737.18
  5. Step 5: Solve for x
    x = 83,508,436,737.18/347,682.60
  6. Step 6: Final answer
    x = 240,185.84

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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.