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Finding the Fourth Proportional to 73,504.80, 110,257.20 and 68,693.40

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Solution

The fourth proportional to 73,504.80, 110,257.20 and 68,693.40 is: 103,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,504.80 : 110,257.20 = 68,693.40 : x
  2. Step 2: Convert to fraction form
    73,504.80/110,257.20 = 68,693.40/x
  3. Step 3: Cross multiply
    73,504.80x = 110,257.20 × 68,693.40
  4. Step 4: Simplify right side
    73,504.80x = 7,573,941,942.48
  5. Step 5: Solve for x
    x = 7,573,941,942.48/73,504.80
  6. Step 6: Final answer
    x = 103,040.10

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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.