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Finding the Fourth Proportional to 132,890.56, 199,301.88 and 39,374.44

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Solution

The fourth proportional to 132,890.56, 199,301.88 and 39,374.44 is: 59,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,890.56 : 199,301.88 = 39,374.44 : x
  2. Step 2: Convert to fraction form
    132,890.56/199,301.88 = 39,374.44/x
  3. Step 3: Cross multiply
    132,890.56x = 199,301.88 × 39,374.44
  4. Step 4: Simplify right side
    132,890.56x = 7,847,399,915.95
  5. Step 5: Solve for x
    x = 7,847,399,915.95/132,890.56
  6. Step 6: Final answer
    x = 59,051.60

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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.