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Finding the Fourth Proportional to 108,573.48, 162,912.06 and 38,485.80

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Solution

The fourth proportional to 108,573.48, 162,912.06 and 38,485.80 is: 57,747.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,573.48 : 162,912.06 = 38,485.80 : x
  2. Step 2: Convert to fraction form
    108,573.48/162,912.06 = 38,485.80/x
  3. Step 3: Cross multiply
    108,573.48x = 162,912.06 × 38,485.80
  4. Step 4: Simplify right side
    108,573.48x = 6,269,800,958.75
  5. Step 5: Solve for x
    x = 6,269,800,958.75/108,573.48
  6. Step 6: Final answer
    x = 57,747.08

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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.