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Finding the Fourth Proportional to 311,551.58, 467,327.21 and 74,894.19

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Solution

The fourth proportional to 311,551.58, 467,327.21 and 74,894.19 is: 112,341.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,551.58 : 467,327.21 = 74,894.19 : x
  2. Step 2: Convert to fraction form
    311,551.58/467,327.21 = 74,894.19/x
  3. Step 3: Cross multiply
    311,551.58x = 467,327.21 × 74,894.19
  4. Step 4: Simplify right side
    311,551.58x = 35,000,090,730.96
  5. Step 5: Solve for x
    x = 35,000,090,730.96/311,551.58
  6. Step 6: Final answer
    x = 112,341.24

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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.