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Finding the Fourth Proportional to 135,345.60, 202,845.60 and 104,025.60

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Solution

The fourth proportional to 135,345.60, 202,845.60 and 104,025.60 is: 155,905.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,345.60 : 202,845.60 = 104,025.60 : x
  2. Step 2: Convert to fraction form
    135,345.60/202,845.60 = 104,025.60/x
  3. Step 3: Cross multiply
    135,345.60x = 202,845.60 × 104,025.60
  4. Step 4: Simplify right side
    135,345.60x = 21,101,135,247.36
  5. Step 5: Solve for x
    x = 21,101,135,247.36/135,345.60
  6. Step 6: Final answer
    x = 155,905.59

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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.