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Finding the Fourth Proportional to 104,480.17, 156,739.94 and 47,558.48

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Solution

The fourth proportional to 104,480.17, 156,739.94 and 47,558.48 is: 71,346.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,480.17 : 156,739.94 = 47,558.48 : x
  2. Step 2: Convert to fraction form
    104,480.17/156,739.94 = 47,558.48/x
  3. Step 3: Cross multiply
    104,480.17x = 156,739.94 × 47,558.48
  4. Step 4: Simplify right side
    104,480.17x = 7,454,313,607.72
  5. Step 5: Solve for x
    x = 7,454,313,607.72/104,480.17
  6. Step 6: Final answer
    x = 71,346.69

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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.