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Finding the Fourth Proportional to 190,689.95, 286,481.57 and 179,917.95

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Solution

The fourth proportional to 190,689.95, 286,481.57 and 179,917.95 is: 270,298.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,689.95 : 286,481.57 = 179,917.95 : x
  2. Step 2: Convert to fraction form
    190,689.95/286,481.57 = 179,917.95/x
  3. Step 3: Cross multiply
    190,689.95x = 286,481.57 × 179,917.95
  4. Step 4: Simplify right side
    190,689.95x = 51,543,176,961.90
  5. Step 5: Solve for x
    x = 51,543,176,961.90/190,689.95
  6. Step 6: Final answer
    x = 270,298.34

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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.