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Finding the Fourth Proportional to 176,392.80, 263,941.20 and 129,736.80

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Solution

The fourth proportional to 176,392.80, 263,941.20 and 129,736.80 is: 194,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,392.80 : 263,941.20 = 129,736.80 : x
  2. Step 2: Convert to fraction form
    176,392.80/263,941.20 = 129,736.80/x
  3. Step 3: Cross multiply
    176,392.80x = 263,941.20 × 129,736.80
  4. Step 4: Simplify right side
    176,392.80x = 34,242,886,676.16
  5. Step 5: Solve for x
    x = 34,242,886,676.16/176,392.80
  6. Step 6: Final answer
    x = 194,128.60

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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.