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Finding the Fourth Proportional to 354,511.50, 489,227.40 and 193,370.01

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Solution

The fourth proportional to 354,511.50, 489,227.40 and 193,370.01 is: 266,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,511.50 : 489,227.40 = 193,370.01 : x
  2. Step 2: Convert to fraction form
    354,511.50/489,227.40 = 193,370.01/x
  3. Step 3: Cross multiply
    354,511.50x = 489,227.40 × 193,370.01
  4. Step 4: Simplify right side
    354,511.50x = 94,601,907,230.27
  5. Step 5: Solve for x
    x = 94,601,907,230.27/354,511.50
  6. Step 6: Final answer
    x = 266,851.45

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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.