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Finding the Fourth Proportional to 475,321.64, 712,974.81 and 115,495.34

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Solution

The fourth proportional to 475,321.64, 712,974.81 and 115,495.34 is: 173,241.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,321.64 : 712,974.81 = 115,495.34 : x
  2. Step 2: Convert to fraction form
    475,321.64/712,974.81 = 115,495.34/x
  3. Step 3: Cross multiply
    475,321.64x = 712,974.81 × 115,495.34
  4. Step 4: Simplify right side
    475,321.64x = 82,345,268,092.39
  5. Step 5: Solve for x
    x = 82,345,268,092.39/475,321.64
  6. Step 6: Final answer
    x = 173,241.15

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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.