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Finding the Fourth Proportional to 71,603.22, 107,403.71 and 17,568.48

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Solution

The fourth proportional to 71,603.22, 107,403.71 and 17,568.48 is: 26,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,603.22 : 107,403.71 = 17,568.48 : x
  2. Step 2: Convert to fraction form
    71,603.22/107,403.71 = 17,568.48/x
  3. Step 3: Cross multiply
    71,603.22x = 107,403.71 × 17,568.48
  4. Step 4: Simplify right side
    71,603.22x = 1,886,919,843.22
  5. Step 5: Solve for x
    x = 1,886,919,843.22/71,603.22
  6. Step 6: Final answer
    x = 26,352.44

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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.