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Finding the Fourth Proportional to 178,007, 245,650.38 and 98,519

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Solution

The fourth proportional to 178,007, 245,650.38 and 98,519 is: 135,956.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,007 : 245,650.38 = 98,519 : x
  2. Step 2: Convert to fraction form
    178,007/245,650.38 = 98,519/x
  3. Step 3: Cross multiply
    178,007x = 245,650.38 × 98,519
  4. Step 4: Simplify right side
    178,007x = 24,201,229,787.22
  5. Step 5: Solve for x
    x = 24,201,229,787.22/178,007
  6. Step 6: Final answer
    x = 135,956.62

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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.