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Finding the Fourth Proportional to 186,067.70, 279,166.35 and 80,962.10

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Solution

The fourth proportional to 186,067.70, 279,166.35 and 80,962.10 is: 121,471.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,067.70 : 279,166.35 = 80,962.10 : x
  2. Step 2: Convert to fraction form
    186,067.70/279,166.35 = 80,962.10/x
  3. Step 3: Cross multiply
    186,067.70x = 279,166.35 × 80,962.10
  4. Step 4: Simplify right side
    186,067.70x = 22,601,893,945.34
  5. Step 5: Solve for x
    x = 22,601,893,945.34/186,067.70
  6. Step 6: Final answer
    x = 121,471.35

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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.