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Finding the Fourth Proportional to 263,149, 363,154.26 and 143,917

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Solution

The fourth proportional to 263,149, 363,154.26 and 143,917 is: 198,610.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,149 : 363,154.26 = 143,917 : x
  2. Step 2: Convert to fraction form
    263,149/363,154.26 = 143,917/x
  3. Step 3: Cross multiply
    263,149x = 363,154.26 × 143,917
  4. Step 4: Simplify right side
    263,149x = 52,264,071,636.42
  5. Step 5: Solve for x
    x = 52,264,071,636.42/263,149
  6. Step 6: Final answer
    x = 198,610.19

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