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Finding the Fourth Proportional to 297,045.70, 445,451.95 and 104,879.15

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Solution

The fourth proportional to 297,045.70, 445,451.95 and 104,879.15 is: 157,277.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,045.70 : 445,451.95 = 104,879.15 : x
  2. Step 2: Convert to fraction form
    297,045.70/445,451.95 = 104,879.15/x
  3. Step 3: Cross multiply
    297,045.70x = 445,451.95 × 104,879.15
  4. Step 4: Simplify right side
    297,045.70x = 46,718,622,700.86
  5. Step 5: Solve for x
    x = 46,718,622,700.86/297,045.70
  6. Step 6: Final answer
    x = 157,277.56

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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.