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Finding the Fourth Proportional to 104,563.98, 156,757.80 and 45,355.08

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Solution

The fourth proportional to 104,563.98, 156,757.80 and 45,355.08 is: 67,994.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,563.98 : 156,757.80 = 45,355.08 : x
  2. Step 2: Convert to fraction form
    104,563.98/156,757.80 = 45,355.08/x
  3. Step 3: Cross multiply
    104,563.98x = 156,757.80 × 45,355.08
  4. Step 4: Simplify right side
    104,563.98x = 7,109,762,559.62
  5. Step 5: Solve for x
    x = 7,109,762,559.62/104,563.98
  6. Step 6: Final answer
    x = 67,994.38

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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.