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Finding the Fourth Proportional to 118,384.56, 177,662.70 and 47,266.56

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Solution

The fourth proportional to 118,384.56, 177,662.70 and 47,266.56 is: 70,934.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,384.56 : 177,662.70 = 47,266.56 : x
  2. Step 2: Convert to fraction form
    118,384.56/177,662.70 = 47,266.56/x
  3. Step 3: Cross multiply
    118,384.56x = 177,662.70 × 47,266.56
  4. Step 4: Simplify right side
    118,384.56x = 8,397,504,669.31
  5. Step 5: Solve for x
    x = 8,397,504,669.31/118,384.56
  6. Step 6: Final answer
    x = 70,934.12

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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.