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Finding the Fourth Proportional to 68,237.52, 102,336.84 and 43,239.84

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Solution

The fourth proportional to 68,237.52, 102,336.84 and 43,239.84 is: 64,847.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,237.52 : 102,336.84 = 43,239.84 : x
  2. Step 2: Convert to fraction form
    68,237.52/102,336.84 = 43,239.84/x
  3. Step 3: Cross multiply
    68,237.52x = 102,336.84 × 43,239.84
  4. Step 4: Simplify right side
    68,237.52x = 4,425,028,587.71
  5. Step 5: Solve for x
    x = 4,425,028,587.71/68,237.52
  6. Step 6: Final answer
    x = 64,847.44

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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.