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Finding the Fourth Proportional to 178,199.54, 245,915.28 and 106,579.56

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Solution

The fourth proportional to 178,199.54, 245,915.28 and 106,579.56 is: 147,079.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,199.54 : 245,915.28 = 106,579.56 : x
  2. Step 2: Convert to fraction form
    178,199.54/245,915.28 = 106,579.56/x
  3. Step 3: Cross multiply
    178,199.54x = 245,915.28 × 106,579.56
  4. Step 4: Simplify right side
    178,199.54x = 26,209,542,339.68
  5. Step 5: Solve for x
    x = 26,209,542,339.68/178,199.54
  6. Step 6: Final answer
    x = 147,079.74

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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.