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Finding the Fourth Proportional to 74,239, 111,356.34 and 27,490.84

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Solution

The fourth proportional to 74,239, 111,356.34 and 27,490.84 is: 41,235.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,239 : 111,356.34 = 27,490.84 : x
  2. Step 2: Convert to fraction form
    74,239/111,356.34 = 27,490.84/x
  3. Step 3: Cross multiply
    74,239x = 111,356.34 × 27,490.84
  4. Step 4: Simplify right side
    74,239x = 3,061,279,325.93
  5. Step 5: Solve for x
    x = 3,061,279,325.93/74,239
  6. Step 6: Final answer
    x = 41,235.46

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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.