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Finding the Fourth Proportional to 68,851, 94,999.74 and 40,546.36

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Solution

The fourth proportional to 68,851, 94,999.74 and 40,546.36 is: 55,945.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,851 : 94,999.74 = 40,546.36 : x
  2. Step 2: Convert to fraction form
    68,851/94,999.74 = 40,546.36/x
  3. Step 3: Cross multiply
    68,851x = 94,999.74 × 40,546.36
  4. Step 4: Simplify right side
    68,851x = 3,851,893,657.95
  5. Step 5: Solve for x
    x = 3,851,893,657.95/68,851
  6. Step 6: Final answer
    x = 55,945.36

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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.