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Finding the Fourth Proportional to 202,613.78, 303,847.76 and 69,458.28

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Solution

The fourth proportional to 202,613.78, 303,847.76 and 69,458.28 is: 104,162.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,613.78 : 303,847.76 = 69,458.28 : x
  2. Step 2: Convert to fraction form
    202,613.78/303,847.76 = 69,458.28/x
  3. Step 3: Cross multiply
    202,613.78x = 303,847.76 × 69,458.28
  4. Step 4: Simplify right side
    202,613.78x = 21,104,742,791.45
  5. Step 5: Solve for x
    x = 21,104,742,791.45/202,613.78
  6. Step 6: Final answer
    x = 104,162.43

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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.