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Finding the Fourth Proportional to 108,715.52, 150,064.26 and 68,496.68

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Solution

The fourth proportional to 108,715.52, 150,064.26 and 68,496.68 is: 94,548.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,715.52 : 150,064.26 = 68,496.68 : x
  2. Step 2: Convert to fraction form
    108,715.52/150,064.26 = 68,496.68/x
  3. Step 3: Cross multiply
    108,715.52x = 150,064.26 × 68,496.68
  4. Step 4: Simplify right side
    108,715.52x = 10,278,903,596.66
  5. Step 5: Solve for x
    x = 10,278,903,596.66/108,715.52
  6. Step 6: Final answer
    x = 94,548.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.