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Finding the Fourth Proportional to 76,954.98, 106,241.94 and 58,662.06

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Solution

The fourth proportional to 76,954.98, 106,241.94 and 58,662.06 is: 80,987.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,954.98 : 106,241.94 = 58,662.06 : x
  2. Step 2: Convert to fraction form
    76,954.98/106,241.94 = 58,662.06/x
  3. Step 3: Cross multiply
    76,954.98x = 106,241.94 × 58,662.06
  4. Step 4: Simplify right side
    76,954.98x = 6,232,371,058.80
  5. Step 5: Solve for x
    x = 6,232,371,058.80/76,954.98
  6. Step 6: Final answer
    x = 80,987.24

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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.