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Finding the Fourth Proportional to 112,558.56, 168,862.08 and 33,679.20

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Solution

The fourth proportional to 112,558.56, 168,862.08 and 33,679.20 is: 50,526.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,558.56 : 168,862.08 = 33,679.20 : x
  2. Step 2: Convert to fraction form
    112,558.56/168,862.08 = 33,679.20/x
  3. Step 3: Cross multiply
    112,558.56x = 168,862.08 × 33,679.20
  4. Step 4: Simplify right side
    112,558.56x = 5,687,139,764.74
  5. Step 5: Solve for x
    x = 5,687,139,764.74/112,558.56
  6. Step 6: Final answer
    x = 50,526.05

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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.