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Finding the Fourth Proportional to 311,321.16, 467,170.74 and 124,317

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Solution

The fourth proportional to 311,321.16, 467,170.74 and 124,317 is: 186,550.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,321.16 : 467,170.74 = 124,317 : x
  2. Step 2: Convert to fraction form
    311,321.16/467,170.74 = 124,317/x
  3. Step 3: Cross multiply
    311,321.16x = 467,170.74 × 124,317
  4. Step 4: Simplify right side
    311,321.16x = 58,077,264,884.58
  5. Step 5: Solve for x
    x = 58,077,264,884.58/311,321.16
  6. Step 6: Final answer
    x = 186,550.97

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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.