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Finding the Fourth Proportional to 245,358.95, 338,600.81 and 149,918.27

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Solution

The fourth proportional to 245,358.95, 338,600.81 and 149,918.27 is: 206,890.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,358.95 : 338,600.81 = 149,918.27 : x
  2. Step 2: Convert to fraction form
    245,358.95/338,600.81 = 149,918.27/x
  3. Step 3: Cross multiply
    245,358.95x = 338,600.81 × 149,918.27
  4. Step 4: Simplify right side
    245,358.95x = 50,762,445,213.20
  5. Step 5: Solve for x
    x = 50,762,445,213.20/245,358.95
  6. Step 6: Final answer
    x = 206,890.54

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1.5x scale

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.