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Finding the Fourth Proportional to 238,689.64, 358,034.44 and 113,651.56

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Solution

The fourth proportional to 238,689.64, 358,034.44 and 113,651.56 is: 170,477.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,689.64 : 358,034.44 = 113,651.56 : x
  2. Step 2: Convert to fraction form
    238,689.64/358,034.44 = 113,651.56/x
  3. Step 3: Cross multiply
    238,689.64x = 358,034.44 × 113,651.56
  4. Step 4: Simplify right side
    238,689.64x = 40,691,172,639.73
  5. Step 5: Solve for x
    x = 40,691,172,639.73/238,689.64
  6. Step 6: Final answer
    x = 170,477.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.