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Finding the Fourth Proportional to 186,495.89, 279,743.57 and 86,601.45

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Solution

The fourth proportional to 186,495.89, 279,743.57 and 86,601.45 is: 129,902.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,495.89 : 279,743.57 = 86,601.45 : x
  2. Step 2: Convert to fraction form
    186,495.89/279,743.57 = 86,601.45/x
  3. Step 3: Cross multiply
    186,495.89x = 279,743.57 × 86,601.45
  4. Step 4: Simplify right side
    186,495.89x = 24,226,200,218.10
  5. Step 5: Solve for x
    x = 24,226,200,218.10/186,495.89
  6. Step 6: Final answer
    x = 129,902.06

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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.