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Finding the Fourth Proportional to 104,558.36, 156,749.36 and 45,349.43

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Solution

The fourth proportional to 104,558.36, 156,749.36 and 45,349.43 is: 67,985.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,558.36 : 156,749.36 = 45,349.43 : x
  2. Step 2: Convert to fraction form
    104,558.36/156,749.36 = 45,349.43/x
  3. Step 3: Cross multiply
    104,558.36x = 156,749.36 × 45,349.43
  4. Step 4: Simplify right side
    104,558.36x = 7,108,493,118.37
  5. Step 5: Solve for x
    x = 7,108,493,118.37/104,558.36
  6. Step 6: Final answer
    x = 67,985.89

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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.