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Finding the Fourth Proportional to 354,236.43, 488,836.54 and 193,094.63

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Solution

The fourth proportional to 354,236.43, 488,836.54 and 193,094.63 is: 266,465.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,236.43 : 488,836.54 = 193,094.63 : x
  2. Step 2: Convert to fraction form
    354,236.43/488,836.54 = 193,094.63/x
  3. Step 3: Cross multiply
    354,236.43x = 488,836.54 × 193,094.63
  4. Step 4: Simplify right side
    354,236.43x = 94,391,707,894.86
  5. Step 5: Solve for x
    x = 94,391,707,894.86/354,236.43
  6. Step 6: Final answer
    x = 266,465.28

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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.