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Finding the Fourth Proportional to 188,048.56, 259,529.96 and 107,479.48

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Solution

The fourth proportional to 188,048.56, 259,529.96 and 107,479.48 is: 148,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,048.56 : 259,529.96 = 107,479.48 : x
  2. Step 2: Convert to fraction form
    188,048.56/259,529.96 = 107,479.48/x
  3. Step 3: Cross multiply
    188,048.56x = 259,529.96 × 107,479.48
  4. Step 4: Simplify right side
    188,048.56x = 27,894,145,145.22
  5. Step 5: Solve for x
    x = 27,894,145,145.22/188,048.56
  6. Step 6: Final answer
    x = 148,334.80

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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.