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Finding the Fourth Proportional to 202,636.54, 303,960.95 and 69,514.88

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Solution

The fourth proportional to 202,636.54, 303,960.95 and 69,514.88 is: 104,274.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,636.54 : 303,960.95 = 69,514.88 : x
  2. Step 2: Convert to fraction form
    202,636.54/303,960.95 = 69,514.88/x
  3. Step 3: Cross multiply
    202,636.54x = 303,960.95 × 69,514.88
  4. Step 4: Simplify right side
    202,636.54x = 21,129,807,748.26
  5. Step 5: Solve for x
    x = 21,129,807,748.26/202,636.54
  6. Step 6: Final answer
    x = 104,274.42

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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.