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Finding the Fourth Proportional to 168,673.26, 253,009.83 and 68,880.45

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Solution

The fourth proportional to 168,673.26, 253,009.83 and 68,880.45 is: 103,320.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,673.26 : 253,009.83 = 68,880.45 : x
  2. Step 2: Convert to fraction form
    168,673.26/253,009.83 = 68,880.45/x
  3. Step 3: Cross multiply
    168,673.26x = 253,009.83 × 68,880.45
  4. Step 4: Simplify right side
    168,673.26x = 17,427,430,944.82
  5. Step 5: Solve for x
    x = 17,427,430,944.82/168,673.26
  6. Step 6: Final answer
    x = 103,320.65

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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.