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Finding the Fourth Proportional to 135,376.40, 203,064.60 and 133,043.60

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Solution

The fourth proportional to 135,376.40, 203,064.60 and 133,043.60 is: 199,565.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,376.40 : 203,064.60 = 133,043.60 : x
  2. Step 2: Convert to fraction form
    135,376.40/203,064.60 = 133,043.60/x
  3. Step 3: Cross multiply
    135,376.40x = 203,064.60 × 133,043.60
  4. Step 4: Simplify right side
    135,376.40x = 27,016,445,416.56
  5. Step 5: Solve for x
    x = 27,016,445,416.56/135,376.40
  6. Step 6: Final answer
    x = 199,565.40

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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.