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Finding the Fourth Proportional to 235,976.40, 353,964.60 and 69,764.40

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Solution

The fourth proportional to 235,976.40, 353,964.60 and 69,764.40 is: 104,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,976.40 : 353,964.60 = 69,764.40 : x
  2. Step 2: Convert to fraction form
    235,976.40/353,964.60 = 69,764.40/x
  3. Step 3: Cross multiply
    235,976.40x = 353,964.60 × 69,764.40
  4. Step 4: Simplify right side
    235,976.40x = 24,694,127,940.24
  5. Step 5: Solve for x
    x = 24,694,127,940.24/235,976.40
  6. Step 6: Final answer
    x = 104,646.60

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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.