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Finding the Fourth Proportional to 96,844.40, 145,266.60 and 68,850.80

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Solution

The fourth proportional to 96,844.40, 145,266.60 and 68,850.80 is: 103,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,844.40 : 145,266.60 = 68,850.80 : x
  2. Step 2: Convert to fraction form
    96,844.40/145,266.60 = 68,850.80/x
  3. Step 3: Cross multiply
    96,844.40x = 145,266.60 × 68,850.80
  4. Step 4: Simplify right side
    96,844.40x = 10,001,721,623.28
  5. Step 5: Solve for x
    x = 10,001,721,623.28/96,844.40
  6. Step 6: Final answer
    x = 103,276.20

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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.