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Finding the Fourth Proportional to 104,618.64, 156,945.60 and 41,405.43

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Solution

The fourth proportional to 104,618.64, 156,945.60 and 41,405.43 is: 62,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,618.64 : 156,945.60 = 41,405.43 : x
  2. Step 2: Convert to fraction form
    104,618.64/156,945.60 = 41,405.43/x
  3. Step 3: Cross multiply
    104,618.64x = 156,945.60 × 41,405.43
  4. Step 4: Simplify right side
    104,618.64x = 6,498,400,054.61
  5. Step 5: Solve for x
    x = 6,498,400,054.61/104,618.64
  6. Step 6: Final answer
    x = 62,115.13

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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.