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Finding the Fourth Proportional to 107,679.44, 148,611.72 and 61,757.04

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Solution

The fourth proportional to 107,679.44, 148,611.72 and 61,757.04 is: 85,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,679.44 : 148,611.72 = 61,757.04 : x
  2. Step 2: Convert to fraction form
    107,679.44/148,611.72 = 61,757.04/x
  3. Step 3: Cross multiply
    107,679.44x = 148,611.72 × 61,757.04
  4. Step 4: Simplify right side
    107,679.44x = 9,177,819,936.51
  5. Step 5: Solve for x
    x = 9,177,819,936.51/107,679.44
  6. Step 6: Final answer
    x = 85,232.80

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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.