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Finding the Fourth Proportional to 354,227.18, 488,818.80 and 193,078.69

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Solution

The fourth proportional to 354,227.18, 488,818.80 and 193,078.69 is: 266,440.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,227.18 : 488,818.80 = 193,078.69 : x
  2. Step 2: Convert to fraction form
    354,227.18/488,818.80 = 193,078.69/x
  3. Step 3: Cross multiply
    354,227.18x = 488,818.80 × 193,078.69
  4. Step 4: Simplify right side
    354,227.18x = 94,380,492,329.33
  5. Step 5: Solve for x
    x = 94,380,492,329.33/354,227.18
  6. Step 6: Final answer
    x = 266,440.58

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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.