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Finding the Fourth Proportional to 186,134.52, 279,198.16 and 53,015.64

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Solution

The fourth proportional to 186,134.52, 279,198.16 and 53,015.64 is: 79,522.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,134.52 : 279,198.16 = 53,015.64 : x
  2. Step 2: Convert to fraction form
    186,134.52/279,198.16 = 53,015.64/x
  3. Step 3: Cross multiply
    186,134.52x = 279,198.16 × 53,015.64
  4. Step 4: Simplify right side
    186,134.52x = 14,801,869,139.22
  5. Step 5: Solve for x
    x = 14,801,869,139.22/186,134.52
  6. Step 6: Final answer
    x = 79,522.43

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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.