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Finding the Fourth Proportional to 202,388.10, 279,304.65 and 116,375.01

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Solution

The fourth proportional to 202,388.10, 279,304.65 and 116,375.01 is: 160,602.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,388.10 : 279,304.65 = 116,375.01 : x
  2. Step 2: Convert to fraction form
    202,388.10/279,304.65 = 116,375.01/x
  3. Step 3: Cross multiply
    202,388.10x = 279,304.65 × 116,375.01
  4. Step 4: Simplify right side
    202,388.10x = 32,504,081,436.80
  5. Step 5: Solve for x
    x = 32,504,081,436.80/202,388.10
  6. Step 6: Final answer
    x = 160,602.73

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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.