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Finding the Fourth Proportional to 132,103.40, 198,111.90 and 48,986.60

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Solution

The fourth proportional to 132,103.40, 198,111.90 and 48,986.60 is: 73,463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,103.40 : 198,111.90 = 48,986.60 : x
  2. Step 2: Convert to fraction form
    132,103.40/198,111.90 = 48,986.60/x
  3. Step 3: Cross multiply
    132,103.40x = 198,111.90 × 48,986.60
  4. Step 4: Simplify right side
    132,103.40x = 9,704,828,400.54
  5. Step 5: Solve for x
    x = 9,704,828,400.54/132,103.40
  6. Step 6: Final answer
    x = 73,463.88

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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.