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Finding the Fourth Proportional to 170,178.94, 255,306.48 and 51,859.54

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Solution

The fourth proportional to 170,178.94, 255,306.48 and 51,859.54 is: 77,800.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,178.94 : 255,306.48 = 51,859.54 : x
  2. Step 2: Convert to fraction form
    170,178.94/255,306.48 = 51,859.54/x
  3. Step 3: Cross multiply
    170,178.94x = 255,306.48 × 51,859.54
  4. Step 4: Simplify right side
    170,178.94x = 13,240,076,611.82
  5. Step 5: Solve for x
    x = 13,240,076,611.82/170,178.94
  6. Step 6: Final answer
    x = 77,800.91

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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.