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Finding the Fourth Proportional to 199,293.39, 274,869.36 and 127,680.08

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Solution

The fourth proportional to 199,293.39, 274,869.36 and 127,680.08 is: 176,098.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,293.39 : 274,869.36 = 127,680.08 : x
  2. Step 2: Convert to fraction form
    199,293.39/274,869.36 = 127,680.08/x
  3. Step 3: Cross multiply
    199,293.39x = 274,869.36 × 127,680.08
  4. Step 4: Simplify right side
    199,293.39x = 35,095,340,500.00
  5. Step 5: Solve for x
    x = 35,095,340,500.00/199,293.39
  6. Step 6: Final answer
    x = 176,098.87

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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.