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Finding the Fourth Proportional to 74,541.60, 111,873.60 and 73,958.40

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Solution

The fourth proportional to 74,541.60, 111,873.60 and 73,958.40 is: 110,998.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,541.60 : 111,873.60 = 73,958.40 : x
  2. Step 2: Convert to fraction form
    74,541.60/111,873.60 = 73,958.40/x
  3. Step 3: Cross multiply
    74,541.60x = 111,873.60 × 73,958.40
  4. Step 4: Simplify right side
    74,541.60x = 8,273,992,458.24
  5. Step 5: Solve for x
    x = 8,273,992,458.24/74,541.60
  6. Step 6: Final answer
    x = 110,998.32

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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.