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Finding the Fourth Proportional to 158,716.24, 237,973.08 and 68,710.48

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Solution

The fourth proportional to 158,716.24, 237,973.08 and 68,710.48 is: 103,021.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,716.24 : 237,973.08 = 68,710.48 : x
  2. Step 2: Convert to fraction form
    158,716.24/237,973.08 = 68,710.48/x
  3. Step 3: Cross multiply
    158,716.24x = 237,973.08 × 68,710.48
  4. Step 4: Simplify right side
    158,716.24x = 16,351,244,553.88
  5. Step 5: Solve for x
    x = 16,351,244,553.88/158,716.24
  6. Step 6: Final answer
    x = 103,021.87

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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.