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Finding the Fourth Proportional to 117,625.20, 176,513.40 and 65,072.40

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Solution

The fourth proportional to 117,625.20, 176,513.40 and 65,072.40 is: 97,650.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,625.20 : 176,513.40 = 65,072.40 : x
  2. Step 2: Convert to fraction form
    117,625.20/176,513.40 = 65,072.40/x
  3. Step 3: Cross multiply
    117,625.20x = 176,513.40 × 65,072.40
  4. Step 4: Simplify right side
    117,625.20x = 11,486,150,570.16
  5. Step 5: Solve for x
    x = 11,486,150,570.16/117,625.20
  6. Step 6: Final answer
    x = 97,650.42

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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.