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Finding the Fourth Proportional to 186,260.90, 279,233.40 and 67,863.20

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Solution

The fourth proportional to 186,260.90, 279,233.40 and 67,863.20 is: 101,737.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,260.90 : 279,233.40 = 67,863.20 : x
  2. Step 2: Convert to fraction form
    186,260.90/279,233.40 = 67,863.20/x
  3. Step 3: Cross multiply
    186,260.90x = 279,233.40 × 67,863.20
  4. Step 4: Simplify right side
    186,260.90x = 18,949,672,070.88
  5. Step 5: Solve for x
    x = 18,949,672,070.88/186,260.90
  6. Step 6: Final answer
    x = 101,737.25

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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.