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Finding the Fourth Proportional to 268,564.67, 402,847.09 and 68,885.03

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Solution

The fourth proportional to 268,564.67, 402,847.09 and 68,885.03 is: 103,327.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,564.67 : 402,847.09 = 68,885.03 : x
  2. Step 2: Convert to fraction form
    268,564.67/402,847.09 = 68,885.03/x
  3. Step 3: Cross multiply
    268,564.67x = 402,847.09 × 68,885.03
  4. Step 4: Simplify right side
    268,564.67x = 27,750,133,880.06
  5. Step 5: Solve for x
    x = 27,750,133,880.06/268,564.67
  6. Step 6: Final answer
    x = 103,327.57

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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.