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Finding the Fourth Proportional to 263,636.55, 363,825.11 and 161,718.21

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Solution

The fourth proportional to 263,636.55, 363,825.11 and 161,718.21 is: 223,175.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,636.55 : 363,825.11 = 161,718.21 : x
  2. Step 2: Convert to fraction form
    263,636.55/363,825.11 = 161,718.21/x
  3. Step 3: Cross multiply
    263,636.55x = 363,825.11 × 161,718.21
  4. Step 4: Simplify right side
    263,636.55x = 58,837,145,542.25
  5. Step 5: Solve for x
    x = 58,837,145,542.25/263,636.55
  6. Step 6: Final answer
    x = 223,175.22

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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.