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Finding the Fourth Proportional to 104,989.68, 157,309.20 and 73,769.04

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Solution

The fourth proportional to 104,989.68, 157,309.20 and 73,769.04 is: 110,530.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,989.68 : 157,309.20 = 73,769.04 : x
  2. Step 2: Convert to fraction form
    104,989.68/157,309.20 = 73,769.04/x
  3. Step 3: Cross multiply
    104,989.68x = 157,309.20 × 73,769.04
  4. Step 4: Simplify right side
    104,989.68x = 11,604,548,667.17
  5. Step 5: Solve for x
    x = 11,604,548,667.17/104,989.68
  6. Step 6: Final answer
    x = 110,530.37

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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.