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Finding the Fourth Proportional to 74,015.60, 110,999.10 and 27,262.40

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Solution

The fourth proportional to 74,015.60, 110,999.10 and 27,262.40 is: 40,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,015.60 : 110,999.10 = 27,262.40 : x
  2. Step 2: Convert to fraction form
    74,015.60/110,999.10 = 27,262.40/x
  3. Step 3: Cross multiply
    74,015.60x = 110,999.10 × 27,262.40
  4. Step 4: Simplify right side
    74,015.60x = 3,026,101,863.84
  5. Step 5: Solve for x
    x = 3,026,101,863.84/74,015.60
  6. Step 6: Final answer
    x = 40,884.65

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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.