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Finding the Fourth Proportional to 124,611.68, 171,961.44 and 68,024

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Solution

The fourth proportional to 124,611.68, 171,961.44 and 68,024 is: 93,871.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,611.68 : 171,961.44 = 68,024 : x
  2. Step 2: Convert to fraction form
    124,611.68/171,961.44 = 68,024/x
  3. Step 3: Cross multiply
    124,611.68x = 171,961.44 × 68,024
  4. Step 4: Simplify right side
    124,611.68x = 11,697,504,994.56
  5. Step 5: Solve for x
    x = 11,697,504,994.56/124,611.68
  6. Step 6: Final answer
    x = 93,871.66

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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.