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Finding the Fourth Proportional to 68,159.54, 94,138.89 and 45,459.08

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Solution

The fourth proportional to 68,159.54, 94,138.89 and 45,459.08 is: 62,786.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,159.54 : 94,138.89 = 45,459.08 : x
  2. Step 2: Convert to fraction form
    68,159.54/94,138.89 = 45,459.08/x
  3. Step 3: Cross multiply
    68,159.54x = 94,138.89 × 45,459.08
  4. Step 4: Simplify right side
    68,159.54x = 4,279,467,104.33
  5. Step 5: Solve for x
    x = 4,279,467,104.33/68,159.54
  6. Step 6: Final answer
    x = 62,786.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.