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Finding the Fourth Proportional to 170,274.80, 255,439.20 and 57,965.60

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Solution

The fourth proportional to 170,274.80, 255,439.20 and 57,965.60 is: 86,957.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,274.80 : 255,439.20 = 57,965.60 : x
  2. Step 2: Convert to fraction form
    170,274.80/255,439.20 = 57,965.60/x
  3. Step 3: Cross multiply
    170,274.80x = 255,439.20 × 57,965.60
  4. Step 4: Simplify right side
    170,274.80x = 14,806,686,491.52
  5. Step 5: Solve for x
    x = 14,806,686,491.52/170,274.80
  6. Step 6: Final answer
    x = 86,957.59

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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.