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Finding the Fourth Proportional to 170,965.80, 256,448.70 and 44,605.80

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Solution

The fourth proportional to 170,965.80, 256,448.70 and 44,605.80 is: 66,908.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,965.80 : 256,448.70 = 44,605.80 : x
  2. Step 2: Convert to fraction form
    170,965.80/256,448.70 = 44,605.80/x
  3. Step 3: Cross multiply
    170,965.80x = 256,448.70 × 44,605.80
  4. Step 4: Simplify right side
    170,965.80x = 11,439,099,422.46
  5. Step 5: Solve for x
    x = 11,439,099,422.46/170,965.80
  6. Step 6: Final answer
    x = 66,908.70

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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.