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Finding the Fourth Proportional to 169,241.76, 253,833.96 and 79,293.84

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Solution

The fourth proportional to 169,241.76, 253,833.96 and 79,293.84 is: 118,927.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,241.76 : 253,833.96 = 79,293.84 : x
  2. Step 2: Convert to fraction form
    169,241.76/253,833.96 = 79,293.84/x
  3. Step 3: Cross multiply
    169,241.76x = 253,833.96 × 79,293.84
  4. Step 4: Simplify right side
    169,241.76x = 20,127,469,410.81
  5. Step 5: Solve for x
    x = 20,127,469,410.81/169,241.76
  6. Step 6: Final answer
    x = 118,927.32

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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.