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Finding the Fourth Proportional to 186,620.82, 257,535.41 and 101,738.49

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Solution

The fourth proportional to 186,620.82, 257,535.41 and 101,738.49 is: 140,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,620.82 : 257,535.41 = 101,738.49 : x
  2. Step 2: Convert to fraction form
    186,620.82/257,535.41 = 101,738.49/x
  3. Step 3: Cross multiply
    186,620.82x = 257,535.41 × 101,738.49
  4. Step 4: Simplify right side
    186,620.82x = 26,201,263,734.93
  5. Step 5: Solve for x
    x = 26,201,263,734.93/186,620.82
  6. Step 6: Final answer
    x = 140,398.40

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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.