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Finding the Fourth Proportional to 342,940.56, 473,274.95 and 206,972.34

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Solution

The fourth proportional to 342,940.56, 473,274.95 and 206,972.34 is: 285,632.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,940.56 : 473,274.95 = 206,972.34 : x
  2. Step 2: Convert to fraction form
    342,940.56/473,274.95 = 206,972.34/x
  3. Step 3: Cross multiply
    342,940.56x = 473,274.95 × 206,972.34
  4. Step 4: Simplify right side
    342,940.56x = 97,954,822,830.02
  5. Step 5: Solve for x
    x = 97,954,822,830.02/342,940.56
  6. Step 6: Final answer
    x = 285,632.07

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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.