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Finding the Fourth Proportional to 196,352.10, 270,880.34 and 123,710.90

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Solution

The fourth proportional to 196,352.10, 270,880.34 and 123,710.90 is: 170,667.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,352.10 : 270,880.34 = 123,710.90 : x
  2. Step 2: Convert to fraction form
    196,352.10/270,880.34 = 123,710.90/x
  3. Step 3: Cross multiply
    196,352.10x = 270,880.34 × 123,710.90
  4. Step 4: Simplify right side
    196,352.10x = 33,510,848,680.75
  5. Step 5: Solve for x
    x = 33,510,848,680.75/196,352.10
  6. Step 6: Final answer
    x = 170,667.13

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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.