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Finding the Fourth Proportional to 268,360.84, 402,537.12 and 68,679.52

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Solution

The fourth proportional to 268,360.84, 402,537.12 and 68,679.52 is: 103,018.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,360.84 : 402,537.12 = 68,679.52 : x
  2. Step 2: Convert to fraction form
    268,360.84/402,537.12 = 68,679.52/x
  3. Step 3: Cross multiply
    268,360.84x = 402,537.12 × 68,679.52
  4. Step 4: Simplify right side
    268,360.84x = 27,646,056,183.78
  5. Step 5: Solve for x
    x = 27,646,056,183.78/268,360.84
  6. Step 6: Final answer
    x = 103,018.22

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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.