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Finding the Fourth Proportional to 199,655.82, 299,840.67 and 191,628.90

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Solution

The fourth proportional to 199,655.82, 299,840.67 and 191,628.90 is: 287,785.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,655.82 : 299,840.67 = 191,628.90 : x
  2. Step 2: Convert to fraction form
    199,655.82/299,840.67 = 191,628.90/x
  3. Step 3: Cross multiply
    199,655.82x = 299,840.67 × 191,628.90
  4. Step 4: Simplify right side
    199,655.82x = 57,458,137,767.36
  5. Step 5: Solve for x
    x = 57,458,137,767.36/199,655.82
  6. Step 6: Final answer
    x = 287,785.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.