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Finding the Fourth Proportional to 68,733.40, 94,858.20 and 40,051.50

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Solution

The fourth proportional to 68,733.40, 94,858.20 and 40,051.50 is: 55,274.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,733.40 : 94,858.20 = 40,051.50 : x
  2. Step 2: Convert to fraction form
    68,733.40/94,858.20 = 40,051.50/x
  3. Step 3: Cross multiply
    68,733.40x = 94,858.20 × 40,051.50
  4. Step 4: Simplify right side
    68,733.40x = 3,799,213,197.30
  5. Step 5: Solve for x
    x = 3,799,213,197.30/68,733.40
  6. Step 6: Final answer
    x = 55,274.63

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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.