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Finding the Fourth Proportional to 253,391.84, 349,656.93 and 171,553.64

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Solution

The fourth proportional to 253,391.84, 349,656.93 and 171,553.64 is: 236,727.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,391.84 : 349,656.93 = 171,553.64 : x
  2. Step 2: Convert to fraction form
    253,391.84/349,656.93 = 171,553.64/x
  3. Step 3: Cross multiply
    253,391.84x = 349,656.93 × 171,553.64
  4. Step 4: Simplify right side
    253,391.84x = 59,984,919,092.73
  5. Step 5: Solve for x
    x = 59,984,919,092.73/253,391.84
  6. Step 6: Final answer
    x = 236,727.90

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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.