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Finding the Fourth Proportional to 135,808.40, 204,019.80 and 94,336.40

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Solution

The fourth proportional to 135,808.40, 204,019.80 and 94,336.40 is: 141,717.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,808.40 : 204,019.80 = 94,336.40 : x
  2. Step 2: Convert to fraction form
    135,808.40/204,019.80 = 94,336.40/x
  3. Step 3: Cross multiply
    135,808.40x = 204,019.80 × 94,336.40
  4. Step 4: Simplify right side
    135,808.40x = 19,246,493,460.72
  5. Step 5: Solve for x
    x = 19,246,493,460.72/135,808.40
  6. Step 6: Final answer
    x = 141,717.99

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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.