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Finding the Fourth Proportional to 186,655.38, 279,879.09 and 110,784.72

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Solution

The fourth proportional to 186,655.38, 279,879.09 and 110,784.72 is: 166,115.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,655.38 : 279,879.09 = 110,784.72 : x
  2. Step 2: Convert to fraction form
    186,655.38/279,879.09 = 110,784.72/x
  3. Step 3: Cross multiply
    186,655.38x = 279,879.09 × 110,784.72
  4. Step 4: Simplify right side
    186,655.38x = 31,006,326,619.50
  5. Step 5: Solve for x
    x = 31,006,326,619.50/186,655.38
  6. Step 6: Final answer
    x = 166,115.37

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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.