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Finding the Fourth Proportional to 354,272.68, 488,886.60 and 193,131.04

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Solution

The fourth proportional to 354,272.68, 488,886.60 and 193,131.04 is: 266,515.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,272.68 : 488,886.60 = 193,131.04 : x
  2. Step 2: Convert to fraction form
    354,272.68/488,886.60 = 193,131.04/x
  3. Step 3: Cross multiply
    354,272.68x = 488,886.60 × 193,131.04
  4. Step 4: Simplify right side
    354,272.68x = 94,419,177,500.06
  5. Step 5: Solve for x
    x = 94,419,177,500.06/354,272.68
  6. Step 6: Final answer
    x = 266,515.55

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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.