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Finding the Fourth Proportional to 68,366.64, 94,205.84 and 50,433.20

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Solution

The fourth proportional to 68,366.64, 94,205.84 and 50,433.20 is: 69,494.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,366.64 : 94,205.84 = 50,433.20 : x
  2. Step 2: Convert to fraction form
    68,366.64/94,205.84 = 50,433.20/x
  3. Step 3: Cross multiply
    68,366.64x = 94,205.84 × 50,433.20
  4. Step 4: Simplify right side
    68,366.64x = 4,751,101,969.89
  5. Step 5: Solve for x
    x = 4,751,101,969.89/68,366.64
  6. Step 6: Final answer
    x = 69,494.45

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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.