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Finding the Fourth Proportional to 245,359.95, 338,602.19 and 149,919.27

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Solution

The fourth proportional to 245,359.95, 338,602.19 and 149,919.27 is: 206,891.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,359.95 : 338,602.19 = 149,919.27 : x
  2. Step 2: Convert to fraction form
    245,359.95/338,602.19 = 149,919.27/x
  3. Step 3: Cross multiply
    245,359.95x = 338,602.19 × 149,919.27
  4. Step 4: Simplify right side
    245,359.95x = 50,762,993,145.20
  5. Step 5: Solve for x
    x = 50,762,993,145.20/245,359.95
  6. Step 6: Final answer
    x = 206,891.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.