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Finding the Fourth Proportional to 311,137.92, 466,684.32 and 121,562.64

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Solution

The fourth proportional to 311,137.92, 466,684.32 and 121,562.64 is: 182,335.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,137.92 : 466,684.32 = 121,562.64 : x
  2. Step 2: Convert to fraction form
    311,137.92/466,684.32 = 121,562.64/x
  3. Step 3: Cross multiply
    311,137.92x = 466,684.32 × 121,562.64
  4. Step 4: Simplify right side
    311,137.92x = 56,731,377,985.80
  5. Step 5: Solve for x
    x = 56,731,377,985.80/311,137.92
  6. Step 6: Final answer
    x = 182,335.15

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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.