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Finding the Fourth Proportional to 104,646.01, 156,965.49 and 45,481.69

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Solution

The fourth proportional to 104,646.01, 156,965.49 and 45,481.69 is: 68,221.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,646.01 : 156,965.49 = 45,481.69 : x
  2. Step 2: Convert to fraction form
    104,646.01/156,965.49 = 45,481.69/x
  3. Step 3: Cross multiply
    104,646.01x = 156,965.49 × 45,481.69
  4. Step 4: Simplify right side
    104,646.01x = 7,139,055,756.88
  5. Step 5: Solve for x
    x = 7,139,055,756.88/104,646.01
  6. Step 6: Final answer
    x = 68,221.00

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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.