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Finding the Fourth Proportional to 120,810.53, 166,724.82 and 67,094.16

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Solution

The fourth proportional to 120,810.53, 166,724.82 and 67,094.16 is: 92,593.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,810.53 : 166,724.82 = 67,094.16 : x
  2. Step 2: Convert to fraction form
    120,810.53/166,724.82 = 67,094.16/x
  3. Step 3: Cross multiply
    120,810.53x = 166,724.82 × 67,094.16
  4. Step 4: Simplify right side
    120,810.53x = 11,186,261,749.05
  5. Step 5: Solve for x
    x = 11,186,261,749.05/120,810.53
  6. Step 6: Final answer
    x = 92,593.44

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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.