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Finding the Fourth Proportional to 186,295.21, 279,274.32 and 67,938.82

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Solution

The fourth proportional to 186,295.21, 279,274.32 and 67,938.82 is: 101,846.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,295.21 : 279,274.32 = 67,938.82 : x
  2. Step 2: Convert to fraction form
    186,295.21/279,274.32 = 67,938.82/x
  3. Step 3: Cross multiply
    186,295.21x = 279,274.32 × 67,938.82
  4. Step 4: Simplify right side
    186,295.21x = 18,973,567,058.92
  5. Step 5: Solve for x
    x = 18,973,567,058.92/186,295.21
  6. Step 6: Final answer
    x = 101,846.78

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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.