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Finding the Fourth Proportional to 203,696.84, 281,098.13 and 113,056.63

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Solution

The fourth proportional to 203,696.84, 281,098.13 and 113,056.63 is: 156,016.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,696.84 : 281,098.13 = 113,056.63 : x
  2. Step 2: Convert to fraction form
    203,696.84/281,098.13 = 113,056.63/x
  3. Step 3: Cross multiply
    203,696.84x = 281,098.13 × 113,056.63
  4. Step 4: Simplify right side
    203,696.84x = 31,780,006,009.07
  5. Step 5: Solve for x
    x = 31,780,006,009.07/203,696.84
  6. Step 6: Final answer
    x = 156,016.19

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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.