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Finding the Fourth Proportional to 132,609.52, 198,914.28 and 39,107.98

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Solution

The fourth proportional to 132,609.52, 198,914.28 and 39,107.98 is: 58,661.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,609.52 : 198,914.28 = 39,107.98 : x
  2. Step 2: Convert to fraction form
    132,609.52/198,914.28 = 39,107.98/x
  3. Step 3: Cross multiply
    132,609.52x = 198,914.28 × 39,107.98
  4. Step 4: Simplify right side
    132,609.52x = 7,779,135,683.95
  5. Step 5: Solve for x
    x = 7,779,135,683.95/132,609.52
  6. Step 6: Final answer
    x = 58,661.97

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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.