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Finding the Fourth Proportional to 104,628.56, 156,944.64 and 45,464.24

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Solution

The fourth proportional to 104,628.56, 156,944.64 and 45,464.24 is: 68,197.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,628.56 : 156,944.64 = 45,464.24 : x
  2. Step 2: Convert to fraction form
    104,628.56/156,944.64 = 45,464.24/x
  3. Step 3: Cross multiply
    104,628.56x = 156,944.64 × 45,464.24
  4. Step 4: Simplify right side
    104,628.56x = 7,135,368,779.67
  5. Step 5: Solve for x
    x = 7,135,368,779.67/104,628.56
  6. Step 6: Final answer
    x = 68,197.14

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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.