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Finding the Fourth Proportional to 365,655.88, 548,552.49 and 165,990.30

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Solution

The fourth proportional to 365,655.88, 548,552.49 and 165,990.30 is: 249,016.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,655.88 : 548,552.49 = 165,990.30 : x
  2. Step 2: Convert to fraction form
    365,655.88/548,552.49 = 165,990.30/x
  3. Step 3: Cross multiply
    365,655.88x = 548,552.49 × 165,990.30
  4. Step 4: Simplify right side
    365,655.88x = 91,054,392,380.85
  5. Step 5: Solve for x
    x = 91,054,392,380.85/365,655.88
  6. Step 6: Final answer
    x = 249,016.62

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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.