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Finding the Fourth Proportional to 201,317.80, 301,976.70 and 61,083.40

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Solution

The fourth proportional to 201,317.80, 301,976.70 and 61,083.40 is: 91,625.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,317.80 : 301,976.70 = 61,083.40 : x
  2. Step 2: Convert to fraction form
    201,317.80/301,976.70 = 61,083.40/x
  3. Step 3: Cross multiply
    201,317.80x = 301,976.70 × 61,083.40
  4. Step 4: Simplify right side
    201,317.80x = 18,445,763,556.78
  5. Step 5: Solve for x
    x = 18,445,763,556.78/201,317.80
  6. Step 6: Final answer
    x = 91,625.10

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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.