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Finding the Fourth Proportional to 361,671.36, 499,100.64 and 198,327.36

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Solution

The fourth proportional to 361,671.36, 499,100.64 and 198,327.36 is: 273,688.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,671.36 : 499,100.64 = 198,327.36 : x
  2. Step 2: Convert to fraction form
    361,671.36/499,100.64 = 198,327.36/x
  3. Step 3: Cross multiply
    361,671.36x = 499,100.64 × 198,327.36
  4. Step 4: Simplify right side
    361,671.36x = 98,985,312,305.51
  5. Step 5: Solve for x
    x = 98,985,312,305.51/361,671.36
  6. Step 6: Final answer
    x = 273,688.56

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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.