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Finding the Fourth Proportional to 170,604.53, 255,907.83 and 75,812.43

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Solution

The fourth proportional to 170,604.53, 255,907.83 and 75,812.43 is: 113,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,604.53 : 255,907.83 = 75,812.43 : x
  2. Step 2: Convert to fraction form
    170,604.53/255,907.83 = 75,812.43/x
  3. Step 3: Cross multiply
    170,604.53x = 255,907.83 × 75,812.43
  4. Step 4: Simplify right side
    170,604.53x = 19,400,994,759.31
  5. Step 5: Solve for x
    x = 19,400,994,759.31/170,604.53
  6. Step 6: Final answer
    x = 113,719.11

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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.