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Finding the Fourth Proportional to 245,418.20, 367,911.30 and 166,275.80

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Solution

The fourth proportional to 245,418.20, 367,911.30 and 166,275.80 is: 249,267.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,418.20 : 367,911.30 = 166,275.80 : x
  2. Step 2: Convert to fraction form
    245,418.20/367,911.30 = 166,275.80/x
  3. Step 3: Cross multiply
    245,418.20x = 367,911.30 × 166,275.80
  4. Step 4: Simplify right side
    245,418.20x = 61,174,745,736.54
  5. Step 5: Solve for x
    x = 61,174,745,736.54/245,418.20
  6. Step 6: Final answer
    x = 249,267.36

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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.