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Finding the Fourth Proportional to 354,039.62, 488,568.52 and 192,895.84

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Solution

The fourth proportional to 354,039.62, 488,568.52 and 192,895.84 is: 266,192.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,039.62 : 488,568.52 = 192,895.84 : x
  2. Step 2: Convert to fraction form
    354,039.62/488,568.52 = 192,895.84/x
  3. Step 3: Cross multiply
    354,039.62x = 488,568.52 × 192,895.84
  4. Step 4: Simplify right side
    354,039.62x = 94,242,835,062.96
  5. Step 5: Solve for x
    x = 94,242,835,062.96/354,039.62
  6. Step 6: Final answer
    x = 266,192.91

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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.