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Finding the Fourth Proportional to 210,604.50, 315,906.75 and 62,860.50

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Solution

The fourth proportional to 210,604.50, 315,906.75 and 62,860.50 is: 94,290.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,604.50 : 315,906.75 = 62,860.50 : x
  2. Step 2: Convert to fraction form
    210,604.50/315,906.75 = 62,860.50/x
  3. Step 3: Cross multiply
    210,604.50x = 315,906.75 × 62,860.50
  4. Step 4: Simplify right side
    210,604.50x = 19,858,056,258.38
  5. Step 5: Solve for x
    x = 19,858,056,258.38/210,604.50
  6. Step 6: Final answer
    x = 94,290.75

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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.