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Finding the Fourth Proportional to 68,558.44, 102,720.30 and 37,415.56

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Solution

The fourth proportional to 68,558.44, 102,720.30 and 37,415.56 is: 56,059.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,558.44 : 102,720.30 = 37,415.56 : x
  2. Step 2: Convert to fraction form
    68,558.44/102,720.30 = 37,415.56/x
  3. Step 3: Cross multiply
    68,558.44x = 102,720.30 × 37,415.56
  4. Step 4: Simplify right side
    68,558.44x = 3,843,337,547.87
  5. Step 5: Solve for x
    x = 3,843,337,547.87/68,558.44
  6. Step 6: Final answer
    x = 56,059.29

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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.