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Finding the Fourth Proportional to 186,620.96, 257,540.92 and 101,738.64

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Solution

The fourth proportional to 186,620.96, 257,540.92 and 101,738.64 is: 140,401.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,620.96 : 257,540.92 = 101,738.64 : x
  2. Step 2: Convert to fraction form
    186,620.96/257,540.92 = 101,738.64/x
  3. Step 3: Cross multiply
    186,620.96x = 257,540.92 × 101,738.64
  4. Step 4: Simplify right side
    186,620.96x = 26,201,862,945.15
  5. Step 5: Solve for x
    x = 26,201,862,945.15/186,620.96
  6. Step 6: Final answer
    x = 140,401.50

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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.