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Finding the Fourth Proportional to 186,096.99, 279,260.30 and 86,238.57

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Solution

The fourth proportional to 186,096.99, 279,260.30 and 86,238.57 is: 129,411.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,096.99 : 279,260.30 = 86,238.57 : x
  2. Step 2: Convert to fraction form
    186,096.99/279,260.30 = 86,238.57/x
  3. Step 3: Cross multiply
    186,096.99x = 279,260.30 × 86,238.57
  4. Step 4: Simplify right side
    186,096.99x = 24,083,009,145.37
  5. Step 5: Solve for x
    x = 24,083,009,145.37/186,096.99
  6. Step 6: Final answer
    x = 129,411.06

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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.