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Finding the Fourth Proportional to 134,770.40, 202,155.60 and 133,020.80

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Solution

The fourth proportional to 134,770.40, 202,155.60 and 133,020.80 is: 199,531.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,770.40 : 202,155.60 = 133,020.80 : x
  2. Step 2: Convert to fraction form
    134,770.40/202,155.60 = 133,020.80/x
  3. Step 3: Cross multiply
    134,770.40x = 202,155.60 × 133,020.80
  4. Step 4: Simplify right side
    134,770.40x = 26,890,899,636.48
  5. Step 5: Solve for x
    x = 26,890,899,636.48/134,770.40
  6. Step 6: Final answer
    x = 199,531.20

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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.