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Finding the Fourth Proportional to 119,342.26, 164,692.90 and 65,630.75

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Solution

The fourth proportional to 119,342.26, 164,692.90 and 65,630.75 is: 90,570.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,342.26 : 164,692.90 = 65,630.75 : x
  2. Step 2: Convert to fraction form
    119,342.26/164,692.90 = 65,630.75/x
  3. Step 3: Cross multiply
    119,342.26x = 164,692.90 × 65,630.75
  4. Step 4: Simplify right side
    119,342.26x = 10,808,918,546.68
  5. Step 5: Solve for x
    x = 10,808,918,546.68/119,342.26
  6. Step 6: Final answer
    x = 90,570.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.