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Finding the Fourth Proportional to 104,644.56, 156,878.36 and 45,435.44

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Solution

The fourth proportional to 104,644.56, 156,878.36 and 45,435.44 is: 68,114.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,644.56 : 156,878.36 = 45,435.44 : x
  2. Step 2: Convert to fraction form
    104,644.56/156,878.36 = 45,435.44/x
  3. Step 3: Cross multiply
    104,644.56x = 156,878.36 × 45,435.44
  4. Step 4: Simplify right side
    104,644.56x = 7,127,837,313.08
  5. Step 5: Solve for x
    x = 7,127,837,313.08/104,644.56
  6. Step 6: Final answer
    x = 68,114.74

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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.