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Finding the Fourth Proportional to 88,173.26, 121,644.76 and 49,924

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Solution

The fourth proportional to 88,173.26, 121,644.76 and 49,924 is: 68,875.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,173.26 : 121,644.76 = 49,924 : x
  2. Step 2: Convert to fraction form
    88,173.26/121,644.76 = 49,924/x
  3. Step 3: Cross multiply
    88,173.26x = 121,644.76 × 49,924
  4. Step 4: Simplify right side
    88,173.26x = 6,072,992,998.24
  5. Step 5: Solve for x
    x = 6,072,992,998.24/88,173.26
  6. Step 6: Final answer
    x = 68,875.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.