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Finding the Fourth Proportional to 186,514.74, 279,579.38 and 86,593.44

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Solution

The fourth proportional to 186,514.74, 279,579.38 and 86,593.44 is: 129,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,514.74 : 279,579.38 = 86,593.44 : x
  2. Step 2: Convert to fraction form
    186,514.74/279,579.38 = 86,593.44/x
  3. Step 3: Cross multiply
    186,514.74x = 279,579.38 × 86,593.44
  4. Step 4: Simplify right side
    186,514.74x = 24,209,740,267.27
  5. Step 5: Solve for x
    x = 24,209,740,267.27/186,514.74
  6. Step 6: Final answer
    x = 129,800.68

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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.