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Finding the Fourth Proportional to 192,620.04, 265,817.34 and 107,745

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Solution

The fourth proportional to 192,620.04, 265,817.34 and 107,745 is: 148,689.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,620.04 : 265,817.34 = 107,745 : x
  2. Step 2: Convert to fraction form
    192,620.04/265,817.34 = 107,745/x
  3. Step 3: Cross multiply
    192,620.04x = 265,817.34 × 107,745
  4. Step 4: Simplify right side
    192,620.04x = 28,640,489,298.30
  5. Step 5: Solve for x
    x = 28,640,489,298.30/192,620.04
  6. Step 6: Final answer
    x = 148,689.04

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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.