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Finding the Fourth Proportional to 170,852.94, 256,299.93 and 71,080.65

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Solution

The fourth proportional to 170,852.94, 256,299.93 and 71,080.65 is: 106,629.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,852.94 : 256,299.93 = 71,080.65 : x
  2. Step 2: Convert to fraction form
    170,852.94/256,299.93 = 71,080.65/x
  3. Step 3: Cross multiply
    170,852.94x = 256,299.93 × 71,080.65
  4. Step 4: Simplify right side
    170,852.94x = 18,217,965,619.35
  5. Step 5: Solve for x
    x = 18,217,965,619.35/170,852.94
  6. Step 6: Final answer
    x = 106,629.51

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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.