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Finding the Fourth Proportional to 110,883.68, 152,976.08 and 68,368.40

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Solution

The fourth proportional to 110,883.68, 152,976.08 and 68,368.40 is: 94,321.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,883.68 : 152,976.08 = 68,368.40 : x
  2. Step 2: Convert to fraction form
    110,883.68/152,976.08 = 68,368.40/x
  3. Step 3: Cross multiply
    110,883.68x = 152,976.08 × 68,368.40
  4. Step 4: Simplify right side
    110,883.68x = 10,458,729,827.87
  5. Step 5: Solve for x
    x = 10,458,729,827.87/110,883.68
  6. Step 6: Final answer
    x = 94,321.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.