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Finding the Fourth Proportional to 337,019.60, 505,388.28 and 137,204.12

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Solution

The fourth proportional to 337,019.60, 505,388.28 and 137,204.12 is: 205,748.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,019.60 : 505,388.28 = 137,204.12 : x
  2. Step 2: Convert to fraction form
    337,019.60/505,388.28 = 137,204.12/x
  3. Step 3: Cross multiply
    337,019.60x = 505,388.28 × 137,204.12
  4. Step 4: Simplify right side
    337,019.60x = 69,341,354,215.71
  5. Step 5: Solve for x
    x = 69,341,354,215.71/337,019.60
  6. Step 6: Final answer
    x = 205,748.73

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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.