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Finding the Fourth Proportional to 137,719.44, 206,551.80 and 62,819.28

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Solution

The fourth proportional to 137,719.44, 206,551.80 and 62,819.28 is: 94,216.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,719.44 : 206,551.80 = 62,819.28 : x
  2. Step 2: Convert to fraction form
    137,719.44/206,551.80 = 62,819.28/x
  3. Step 3: Cross multiply
    137,719.44x = 206,551.80 × 62,819.28
  4. Step 4: Simplify right side
    137,719.44x = 12,975,435,358.70
  5. Step 5: Solve for x
    x = 12,975,435,358.70/137,719.44
  6. Step 6: Final answer
    x = 94,216.44

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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.