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Finding the Fourth Proportional to 251,674.48, 347,306.29 and 136,949.22

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Solution

The fourth proportional to 251,674.48, 347,306.29 and 136,949.22 is: 188,987.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,674.48 : 347,306.29 = 136,949.22 : x
  2. Step 2: Convert to fraction form
    251,674.48/347,306.29 = 136,949.22/x
  3. Step 3: Cross multiply
    251,674.48x = 347,306.29 × 136,949.22
  4. Step 4: Simplify right side
    251,674.48x = 47,563,325,516.59
  5. Step 5: Solve for x
    x = 47,563,325,516.59/251,674.48
  6. Step 6: Final answer
    x = 188,987.48

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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.