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Finding the Fourth Proportional to 251,506.49, 347,081.25 and 136,786.22

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Solution

The fourth proportional to 251,506.49, 347,081.25 and 136,786.22 is: 188,766.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,506.49 : 347,081.25 = 136,786.22 : x
  2. Step 2: Convert to fraction form
    251,506.49/347,081.25 = 136,786.22/x
  3. Step 3: Cross multiply
    251,506.49x = 347,081.25 × 136,786.22
  4. Step 4: Simplify right side
    251,506.49x = 47,475,932,220.38
  5. Step 5: Solve for x
    x = 47,475,932,220.38/251,506.49
  6. Step 6: Final answer
    x = 188,766.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.