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Finding the Fourth Proportional to 133,405.40, 200,108.10 and 132,627.80

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Solution

The fourth proportional to 133,405.40, 200,108.10 and 132,627.80 is: 198,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,405.40 : 200,108.10 = 132,627.80 : x
  2. Step 2: Convert to fraction form
    133,405.40/200,108.10 = 132,627.80/x
  3. Step 3: Cross multiply
    133,405.40x = 200,108.10 × 132,627.80
  4. Step 4: Simplify right side
    133,405.40x = 26,539,897,065.18
  5. Step 5: Solve for x
    x = 26,539,897,065.18/133,405.40
  6. Step 6: Final answer
    x = 198,941.70

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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.