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Finding the Fourth Proportional to 196,207.92, 294,107.76 and 90,940.32

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Solution

The fourth proportional to 196,207.92, 294,107.76 and 90,940.32 is: 136,315.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,207.92 : 294,107.76 = 90,940.32 : x
  2. Step 2: Convert to fraction form
    196,207.92/294,107.76 = 90,940.32/x
  3. Step 3: Cross multiply
    196,207.92x = 294,107.76 × 90,940.32
  4. Step 4: Simplify right side
    196,207.92x = 26,746,253,808.88
  5. Step 5: Solve for x
    x = 26,746,253,808.88/196,207.92
  6. Step 6: Final answer
    x = 136,315.87

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1.5x scale

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.