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Finding the Fourth Proportional to 74,660.60, 112,034.10 and 27,918.20

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Solution

The fourth proportional to 74,660.60, 112,034.10 and 27,918.20 is: 41,893.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,660.60 : 112,034.10 = 27,918.20 : x
  2. Step 2: Convert to fraction form
    74,660.60/112,034.10 = 27,918.20/x
  3. Step 3: Cross multiply
    74,660.60x = 112,034.10 × 27,918.20
  4. Step 4: Simplify right side
    74,660.60x = 3,127,790,410.62
  5. Step 5: Solve for x
    x = 3,127,790,410.62/74,660.60
  6. Step 6: Final answer
    x = 41,893.45

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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.