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Finding the Fourth Proportional to 173,186.34, 259,773.36 and 66,542.82

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Solution

The fourth proportional to 173,186.34, 259,773.36 and 66,542.82 is: 99,811.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,186.34 : 259,773.36 = 66,542.82 : x
  2. Step 2: Convert to fraction form
    173,186.34/259,773.36 = 66,542.82/x
  3. Step 3: Cross multiply
    173,186.34x = 259,773.36 × 66,542.82
  4. Step 4: Simplify right side
    173,186.34x = 17,286,051,935.28
  5. Step 5: Solve for x
    x = 17,286,051,935.28/173,186.34
  6. Step 6: Final answer
    x = 99,811.87

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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.