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Finding the Fourth Proportional to 68,795.28, 94,929.03 and 40,495.50

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Solution

The fourth proportional to 68,795.28, 94,929.03 and 40,495.50 is: 55,878.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,795.28 : 94,929.03 = 40,495.50 : x
  2. Step 2: Convert to fraction form
    68,795.28/94,929.03 = 40,495.50/x
  3. Step 3: Cross multiply
    68,795.28x = 94,929.03 × 40,495.50
  4. Step 4: Simplify right side
    68,795.28x = 3,844,198,534.37
  5. Step 5: Solve for x
    x = 3,844,198,534.37/68,795.28
  6. Step 6: Final answer
    x = 55,878.81

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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.