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Finding the Fourth Proportional to 365,572.20, 548,139.60 and 188,425.20

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Solution

The fourth proportional to 365,572.20, 548,139.60 and 188,425.20 is: 282,525.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,572.20 : 548,139.60 = 188,425.20 : x
  2. Step 2: Convert to fraction form
    365,572.20/548,139.60 = 188,425.20/x
  3. Step 3: Cross multiply
    365,572.20x = 548,139.60 × 188,425.20
  4. Step 4: Simplify right side
    365,572.20x = 103,283,313,757.92
  5. Step 5: Solve for x
    x = 103,283,313,757.92/365,572.20
  6. Step 6: Final answer
    x = 282,525.08

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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.