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Finding the Fourth Proportional to 68,551.81, 102,786.20 and 44,830.72

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Solution

The fourth proportional to 68,551.81, 102,786.20 and 44,830.72 is: 67,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,551.81 : 102,786.20 = 44,830.72 : x
  2. Step 2: Convert to fraction form
    68,551.81/102,786.20 = 44,830.72/x
  3. Step 3: Cross multiply
    68,551.81x = 102,786.20 × 44,830.72
  4. Step 4: Simplify right side
    68,551.81x = 4,607,979,352.06
  5. Step 5: Solve for x
    x = 4,607,979,352.06/68,551.81
  6. Step 6: Final answer
    x = 67,218.93

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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.