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Finding the Fourth Proportional to 186,606.56, 279,754.32 and 86,714.12

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Solution

The fourth proportional to 186,606.56, 279,754.32 and 86,714.12 is: 129,998.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,606.56 : 279,754.32 = 86,714.12 : x
  2. Step 2: Convert to fraction form
    186,606.56/279,754.32 = 86,714.12/x
  3. Step 3: Cross multiply
    186,606.56x = 279,754.32 × 86,714.12
  4. Step 4: Simplify right side
    186,606.56x = 24,258,649,675.00
  5. Step 5: Solve for x
    x = 24,258,649,675.00/186,606.56
  6. Step 6: Final answer
    x = 129,998.91

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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.