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Finding the Fourth Proportional to 346,404.20, 519,679.20 and 109,770.80

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Solution

The fourth proportional to 346,404.20, 519,679.20 and 109,770.80 is: 164,679.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,404.20 : 519,679.20 = 109,770.80 : x
  2. Step 2: Convert to fraction form
    346,404.20/519,679.20 = 109,770.80/x
  3. Step 3: Cross multiply
    346,404.20x = 519,679.20 × 109,770.80
  4. Step 4: Simplify right side
    346,404.20x = 57,045,601,527.36
  5. Step 5: Solve for x
    x = 57,045,601,527.36/346,404.20
  6. Step 6: Final answer
    x = 164,679.30

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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.