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Finding the Fourth Proportional to 268,334.34, 402,497.40 and 68,653.02

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Solution

The fourth proportional to 268,334.34, 402,497.40 and 68,653.02 is: 102,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,334.34 : 402,497.40 = 68,653.02 : x
  2. Step 2: Convert to fraction form
    268,334.34/402,497.40 = 68,653.02/x
  3. Step 3: Cross multiply
    268,334.34x = 402,497.40 × 68,653.02
  4. Step 4: Simplify right side
    268,334.34x = 27,632,662,052.15
  5. Step 5: Solve for x
    x = 27,632,662,052.15/268,334.34
  6. Step 6: Final answer
    x = 102,978.48

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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.