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Finding the Fourth Proportional to 475,321.71, 712,974.91 and 115,495.41

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Solution

The fourth proportional to 475,321.71, 712,974.91 and 115,495.41 is: 173,241.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,321.71 : 712,974.91 = 115,495.41 : x
  2. Step 2: Convert to fraction form
    475,321.71/712,974.91 = 115,495.41/x
  3. Step 3: Cross multiply
    475,321.71x = 712,974.91 × 115,495.41
  4. Step 4: Simplify right side
    475,321.71x = 82,345,325,407.81
  5. Step 5: Solve for x
    x = 82,345,325,407.81/475,321.71
  6. Step 6: Final answer
    x = 173,241.25

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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.