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Finding the Fourth Proportional to 196,511.60, 294,824.80 and 63,388.90

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Solution

The fourth proportional to 196,511.60, 294,824.80 and 63,388.90 is: 95,101.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,511.60 : 294,824.80 = 63,388.90 : x
  2. Step 2: Convert to fraction form
    196,511.60/294,824.80 = 63,388.90/x
  3. Step 3: Cross multiply
    196,511.60x = 294,824.80 × 63,388.90
  4. Step 4: Simplify right side
    196,511.60x = 18,688,619,764.72
  5. Step 5: Solve for x
    x = 18,688,619,764.72/196,511.60
  6. Step 6: Final answer
    x = 95,101.87

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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.