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Finding the Fourth Proportional to 132,370.60, 198,536.70 and 38,866.60

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Solution

The fourth proportional to 132,370.60, 198,536.70 and 38,866.60 is: 58,294.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,370.60 : 198,536.70 = 38,866.60 : x
  2. Step 2: Convert to fraction form
    132,370.60/198,536.70 = 38,866.60/x
  3. Step 3: Cross multiply
    132,370.60x = 198,536.70 × 38,866.60
  4. Step 4: Simplify right side
    132,370.60x = 7,716,446,504.22
  5. Step 5: Solve for x
    x = 7,716,446,504.22/132,370.60
  6. Step 6: Final answer
    x = 58,294.26

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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.