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Finding the Fourth Proportional to 202,449.68, 279,359.88 and 117,584.72

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Solution

The fourth proportional to 202,449.68, 279,359.88 and 117,584.72 is: 162,254.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,449.68 : 279,359.88 = 117,584.72 : x
  2. Step 2: Convert to fraction form
    202,449.68/279,359.88 = 117,584.72/x
  3. Step 3: Cross multiply
    202,449.68x = 279,359.88 × 117,584.72
  4. Step 4: Simplify right side
    202,449.68x = 32,848,453,269.03
  5. Step 5: Solve for x
    x = 32,848,453,269.03/202,449.68
  6. Step 6: Final answer
    x = 162,254.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.