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Finding the Fourth Proportional to 132,405.90, 198,620.19 and 37,636.44

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Solution

The fourth proportional to 132,405.90, 198,620.19 and 37,636.44 is: 56,457.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,405.90 : 198,620.19 = 37,636.44 : x
  2. Step 2: Convert to fraction form
    132,405.90/198,620.19 = 37,636.44/x
  3. Step 3: Cross multiply
    132,405.90x = 198,620.19 × 37,636.44
  4. Step 4: Simplify right side
    132,405.90x = 7,475,356,863.72
  5. Step 5: Solve for x
    x = 7,475,356,863.72/132,405.90
  6. Step 6: Final answer
    x = 56,457.88

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1.5x scale

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.