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Finding the Fourth Proportional to 347,269.20, 520,903.80 and 110,635.80

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Solution

The fourth proportional to 347,269.20, 520,903.80 and 110,635.80 is: 165,953.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,269.20 : 520,903.80 = 110,635.80 : x
  2. Step 2: Convert to fraction form
    347,269.20/520,903.80 = 110,635.80/x
  3. Step 3: Cross multiply
    347,269.20x = 520,903.80 × 110,635.80
  4. Step 4: Simplify right side
    347,269.20x = 57,630,608,636.04
  5. Step 5: Solve for x
    x = 57,630,608,636.04/347,269.20
  6. Step 6: Final answer
    x = 165,953.70

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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.