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Finding the Fourth Proportional to 354,508.51, 489,223.27 and 193,367.02

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Solution

The fourth proportional to 354,508.51, 489,223.27 and 193,367.02 is: 266,847.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,508.51 : 489,223.27 = 193,367.02 : x
  2. Step 2: Convert to fraction form
    354,508.51/489,223.27 = 193,367.02/x
  3. Step 3: Cross multiply
    354,508.51x = 489,223.27 × 193,367.02
  4. Step 4: Simplify right side
    354,508.51x = 94,599,647,214.41
  5. Step 5: Solve for x
    x = 94,599,647,214.41/354,508.51
  6. Step 6: Final answer
    x = 266,847.32

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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.