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Finding the Fourth Proportional to 143,866.03, 198,620.28 and 127,906.33

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Solution

The fourth proportional to 143,866.03, 198,620.28 and 127,906.33 is: 176,586.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,866.03 : 198,620.28 = 127,906.33 : x
  2. Step 2: Convert to fraction form
    143,866.03/198,620.28 = 127,906.33/x
  3. Step 3: Cross multiply
    143,866.03x = 198,620.28 × 127,906.33
  4. Step 4: Simplify right side
    143,866.03x = 25,404,791,078.37
  5. Step 5: Solve for x
    x = 25,404,791,078.37/143,866.03
  6. Step 6: Final answer
    x = 176,586.45

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1.5x scale

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.