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Finding the Fourth Proportional to 68,058.54, 93,857.94 and 42,556.77

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Solution

The fourth proportional to 68,058.54, 93,857.94 and 42,556.77 is: 58,689.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,058.54 : 93,857.94 = 42,556.77 : x
  2. Step 2: Convert to fraction form
    68,058.54/93,857.94 = 42,556.77/x
  3. Step 3: Cross multiply
    68,058.54x = 93,857.94 × 42,556.77
  4. Step 4: Simplify right side
    68,058.54x = 3,994,290,765.25
  5. Step 5: Solve for x
    x = 3,994,290,765.25/68,058.54
  6. Step 6: Final answer
    x = 58,689.05

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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.