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Finding the Fourth Proportional to 101,418.56, 151,932.36 and 56,909.60

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Solution

The fourth proportional to 101,418.56, 151,932.36 and 56,909.60 is: 85,254.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,418.56 : 151,932.36 = 56,909.60 : x
  2. Step 2: Convert to fraction form
    101,418.56/151,932.36 = 56,909.60/x
  3. Step 3: Cross multiply
    101,418.56x = 151,932.36 × 56,909.60
  4. Step 4: Simplify right side
    101,418.56x = 8,646,409,834.66
  5. Step 5: Solve for x
    x = 8,646,409,834.66/101,418.56
  6. Step 6: Final answer
    x = 85,254.71

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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.