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Finding the Fourth Proportional to 170,738.70, 256,108.05 and 117,594.60

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Solution

The fourth proportional to 170,738.70, 256,108.05 and 117,594.60 is: 176,391.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,738.70 : 256,108.05 = 117,594.60 : x
  2. Step 2: Convert to fraction form
    170,738.70/256,108.05 = 117,594.60/x
  3. Step 3: Cross multiply
    170,738.70x = 256,108.05 × 117,594.60
  4. Step 4: Simplify right side
    170,738.70x = 30,116,923,696.53
  5. Step 5: Solve for x
    x = 30,116,923,696.53/170,738.70
  6. Step 6: Final answer
    x = 176,391.90

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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.