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Finding the Fourth Proportional to 312,672.60, 468,899.55 and 162,863.10

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Solution

The fourth proportional to 312,672.60, 468,899.55 and 162,863.10 is: 244,237.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,672.60 : 468,899.55 = 162,863.10 : x
  2. Step 2: Convert to fraction form
    312,672.60/468,899.55 = 162,863.10/x
  3. Step 3: Cross multiply
    312,672.60x = 468,899.55 × 162,863.10
  4. Step 4: Simplify right side
    312,672.60x = 76,366,434,301.61
  5. Step 5: Solve for x
    x = 76,366,434,301.61/312,672.60
  6. Step 6: Final answer
    x = 244,237.69

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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.