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Finding the Fourth Proportional to 312,451.22, 468,677.52 and 112,912.53

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Solution

The fourth proportional to 312,451.22, 468,677.52 and 112,912.53 is: 169,369.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,451.22 : 468,677.52 = 112,912.53 : x
  2. Step 2: Convert to fraction form
    312,451.22/468,677.52 = 112,912.53/x
  3. Step 3: Cross multiply
    312,451.22x = 468,677.52 × 112,912.53
  4. Step 4: Simplify right side
    312,451.22x = 52,919,565,098.53
  5. Step 5: Solve for x
    x = 52,919,565,098.53/312,451.22
  6. Step 6: Final answer
    x = 169,369.04

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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.