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Finding the Fourth Proportional to 133,967.39, 200,968.90 and 70,790.09

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Solution

The fourth proportional to 133,967.39, 200,968.90 and 70,790.09 is: 106,194.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,967.39 : 200,968.90 = 70,790.09 : x
  2. Step 2: Convert to fraction form
    133,967.39/200,968.90 = 70,790.09/x
  3. Step 3: Cross multiply
    133,967.39x = 200,968.90 × 70,790.09
  4. Step 4: Simplify right side
    133,967.39x = 14,226,605,336.38
  5. Step 5: Solve for x
    x = 14,226,605,336.38/133,967.39
  6. Step 6: Final answer
    x = 106,194.54

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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.