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Finding the Fourth Proportional to 186,635.52, 279,870.91 and 53,485.56

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Solution

The fourth proportional to 186,635.52, 279,870.91 and 53,485.56 is: 80,204.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,635.52 : 279,870.91 = 53,485.56 : x
  2. Step 2: Convert to fraction form
    186,635.52/279,870.91 = 53,485.56/x
  3. Step 3: Cross multiply
    186,635.52x = 279,870.91 × 53,485.56
  4. Step 4: Simplify right side
    186,635.52x = 14,969,052,349.06
  5. Step 5: Solve for x
    x = 14,969,052,349.06/186,635.52
  6. Step 6: Final answer
    x = 80,204.73

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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.