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Finding the Fourth Proportional to 268,566.79, 402,850.28 and 68,887.16

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Solution

The fourth proportional to 268,566.79, 402,850.28 and 68,887.16 is: 103,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,566.79 : 402,850.28 = 68,887.16 : x
  2. Step 2: Convert to fraction form
    268,566.79/402,850.28 = 68,887.16/x
  3. Step 3: Cross multiply
    268,566.79x = 402,850.28 × 68,887.16
  4. Step 4: Simplify right side
    268,566.79x = 27,751,211,694.40
  5. Step 5: Solve for x
    x = 27,751,211,694.40/268,566.79
  6. Step 6: Final answer
    x = 103,330.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.