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Finding the Fourth Proportional to 203,696.09, 281,097.09 and 113,055.87

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Solution

The fourth proportional to 203,696.09, 281,097.09 and 113,055.87 is: 156,015.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,696.09 : 281,097.09 = 113,055.87 : x
  2. Step 2: Convert to fraction form
    203,696.09/281,097.09 = 113,055.87/x
  3. Step 3: Cross multiply
    203,696.09x = 281,097.09 × 113,055.87
  4. Step 4: Simplify right side
    203,696.09x = 31,779,677,118.53
  5. Step 5: Solve for x
    x = 31,779,677,118.53/203,696.09
  6. Step 6: Final answer
    x = 156,015.16

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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.