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Finding the Fourth Proportional to 115,503, 173,323.62 and 49,839

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Solution

The fourth proportional to 115,503, 173,323.62 and 49,839 is: 74,788.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,503 : 173,323.62 = 49,839 : x
  2. Step 2: Convert to fraction form
    115,503/173,323.62 = 49,839/x
  3. Step 3: Cross multiply
    115,503x = 173,323.62 × 49,839
  4. Step 4: Simplify right side
    115,503x = 8,638,275,897.18
  5. Step 5: Solve for x
    x = 8,638,275,897.18/115,503
  6. Step 6: Final answer
    x = 74,788.32

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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.