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Finding the Fourth Proportional to 101,076.90, 151,615.34 and 56,734.80

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Solution

The fourth proportional to 101,076.90, 151,615.34 and 56,734.80 is: 85,102.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,076.90 : 151,615.34 = 56,734.80 : x
  2. Step 2: Convert to fraction form
    101,076.90/151,615.34 = 56,734.80/x
  3. Step 3: Cross multiply
    101,076.90x = 151,615.34 × 56,734.80
  4. Step 4: Simplify right side
    101,076.90x = 8,601,865,991.83
  5. Step 5: Solve for x
    x = 8,601,865,991.83/101,076.90
  6. Step 6: Final answer
    x = 85,102.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.