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Finding the Fourth Proportional to 242,600.33, 363,955.89 and 74,144.63

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Solution

The fourth proportional to 242,600.33, 363,955.89 and 74,144.63 is: 111,233.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,600.33 : 363,955.89 = 74,144.63 : x
  2. Step 2: Convert to fraction form
    242,600.33/363,955.89 = 74,144.63/x
  3. Step 3: Cross multiply
    242,600.33x = 363,955.89 × 74,144.63
  4. Step 4: Simplify right side
    242,600.33x = 26,985,374,800.37
  5. Step 5: Solve for x
    x = 26,985,374,800.37/242,600.33
  6. Step 6: Final answer
    x = 111,233.88

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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.