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Finding the Fourth Proportional to 379,037.58, 568,523.53 and 154,421.74

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Solution

The fourth proportional to 379,037.58, 568,523.53 and 154,421.74 is: 231,619.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,037.58 : 568,523.53 = 154,421.74 : x
  2. Step 2: Convert to fraction form
    379,037.58/568,523.53 = 154,421.74/x
  3. Step 3: Cross multiply
    379,037.58x = 568,523.53 × 154,421.74
  4. Step 4: Simplify right side
    379,037.58x = 87,792,392,733.54
  5. Step 5: Solve for x
    x = 87,792,392,733.54/379,037.58
  6. Step 6: Final answer
    x = 231,619.23

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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.