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Finding the Fourth Proportional to 203,699.64, 281,101.28 and 113,050.34

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Solution

The fourth proportional to 203,699.64, 281,101.28 and 113,050.34 is: 156,007.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,699.64 : 281,101.28 = 113,050.34 : x
  2. Step 2: Convert to fraction form
    203,699.64/281,101.28 = 113,050.34/x
  3. Step 3: Cross multiply
    203,699.64x = 281,101.28 × 113,050.34
  4. Step 4: Simplify right side
    203,699.64x = 31,778,593,307.68
  5. Step 5: Solve for x
    x = 31,778,593,307.68/203,699.64
  6. Step 6: Final answer
    x = 156,007.12

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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.