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Finding the Fourth Proportional to 268,606.22, 402,923.68 and 68,928.32

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Solution

The fourth proportional to 268,606.22, 402,923.68 and 68,928.32 is: 103,396.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,606.22 : 402,923.68 = 68,928.32 : x
  2. Step 2: Convert to fraction form
    268,606.22/402,923.68 = 68,928.32/x
  3. Step 3: Cross multiply
    268,606.22x = 402,923.68 × 68,928.32
  4. Step 4: Simplify right side
    268,606.22x = 27,772,853,185.61
  5. Step 5: Solve for x
    x = 27,772,853,185.61/268,606.22
  6. Step 6: Final answer
    x = 103,396.17

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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.