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Finding the Fourth Proportional to 357,145.61, 492,845.41 and 196,003.33

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Solution

The fourth proportional to 357,145.61, 492,845.41 and 196,003.33 is: 270,476.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,145.61 : 492,845.41 = 196,003.33 : x
  2. Step 2: Convert to fraction form
    357,145.61/492,845.41 = 196,003.33/x
  3. Step 3: Cross multiply
    357,145.61x = 492,845.41 × 196,003.33
  4. Step 4: Simplify right side
    357,145.61x = 96,599,340,548.11
  5. Step 5: Solve for x
    x = 96,599,340,548.11/357,145.61
  6. Step 6: Final answer
    x = 270,476.07

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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.