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Finding the Fourth Proportional to 354,342.14, 531,620.52 and 126,607.94

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Solution

The fourth proportional to 354,342.14, 531,620.52 and 126,607.94 is: 189,950.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,342.14 : 531,620.52 = 126,607.94 : x
  2. Step 2: Convert to fraction form
    354,342.14/531,620.52 = 126,607.94/x
  3. Step 3: Cross multiply
    354,342.14x = 531,620.52 × 126,607.94
  4. Step 4: Simplify right side
    354,342.14x = 67,307,376,264.44
  5. Step 5: Solve for x
    x = 67,307,376,264.44/354,342.14
  6. Step 6: Final answer
    x = 189,950.24

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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.