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Finding the Fourth Proportional to 236,461.60, 353,668.40 and 211,680.80

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Solution

The fourth proportional to 236,461.60, 353,668.40 and 211,680.80 is: 316,604.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,461.60 : 353,668.40 = 211,680.80 : x
  2. Step 2: Convert to fraction form
    236,461.60/353,668.40 = 211,680.80/x
  3. Step 3: Cross multiply
    236,461.60x = 353,668.40 × 211,680.80
  4. Step 4: Simplify right side
    236,461.60x = 74,864,809,846.72
  5. Step 5: Solve for x
    x = 74,864,809,846.72/236,461.60
  6. Step 6: Final answer
    x = 316,604.51

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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.