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Finding the Fourth Proportional to 306,058.79, 422,362.00 and 170,092.32

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Solution

The fourth proportional to 306,058.79, 422,362.00 and 170,092.32 is: 234,727.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,058.79 : 422,362.00 = 170,092.32 : x
  2. Step 2: Convert to fraction form
    306,058.79/422,362.00 = 170,092.32/x
  3. Step 3: Cross multiply
    306,058.79x = 422,362.00 × 170,092.32
  4. Step 4: Simplify right side
    306,058.79x = 71,840,532,507.61
  5. Step 5: Solve for x
    x = 71,840,532,507.61/306,058.79
  6. Step 6: Final answer
    x = 234,727.89

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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.