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Finding the Fourth Proportional to 351,099.84, 526,525.21 and 126,399.94

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Solution

The fourth proportional to 351,099.84, 526,525.21 and 126,399.94 is: 189,555.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,099.84 : 526,525.21 = 126,399.94 : x
  2. Step 2: Convert to fraction form
    351,099.84/526,525.21 = 126,399.94/x
  3. Step 3: Cross multiply
    351,099.84x = 526,525.21 × 126,399.94
  4. Step 4: Simplify right side
    351,099.84x = 66,552,756,755.88
  5. Step 5: Solve for x
    x = 66,552,756,755.88/351,099.84
  6. Step 6: Final answer
    x = 189,555.08

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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.