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Finding the Fourth Proportional to 74,954.80, 112,464.60 and 35,491.60

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Solution

The fourth proportional to 74,954.80, 112,464.60 and 35,491.60 is: 53,252.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,954.80 : 112,464.60 = 35,491.60 : x
  2. Step 2: Convert to fraction form
    74,954.80/112,464.60 = 35,491.60/x
  3. Step 3: Cross multiply
    74,954.80x = 112,464.60 × 35,491.60
  4. Step 4: Simplify right side
    74,954.80x = 3,991,548,597.36
  5. Step 5: Solve for x
    x = 3,991,548,597.36/74,954.80
  6. Step 6: Final answer
    x = 53,252.74

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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.