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Finding the Fourth Proportional to 260,668.75, 390,756.59 and 196,527.37

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Solution

The fourth proportional to 260,668.75, 390,756.59 and 196,527.37 is: 294,605.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,668.75 : 390,756.59 = 196,527.37 : x
  2. Step 2: Convert to fraction form
    260,668.75/390,756.59 = 196,527.37/x
  3. Step 3: Cross multiply
    260,668.75x = 390,756.59 × 196,527.37
  4. Step 4: Simplify right side
    260,668.75x = 76,794,363,488.93
  5. Step 5: Solve for x
    x = 76,794,363,488.93/260,668.75
  6. Step 6: Final answer
    x = 294,605.18

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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.