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Finding the Fourth Proportional to 177,790.80, 266,313.60 and 83,101.80

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Solution

The fourth proportional to 177,790.80, 266,313.60 and 83,101.80 is: 124,478.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,790.80 : 266,313.60 = 83,101.80 : x
  2. Step 2: Convert to fraction form
    177,790.80/266,313.60 = 83,101.80/x
  3. Step 3: Cross multiply
    177,790.80x = 266,313.60 × 83,101.80
  4. Step 4: Simplify right side
    177,790.80x = 22,131,139,524.48
  5. Step 5: Solve for x
    x = 22,131,139,524.48/177,790.80
  6. Step 6: Final answer
    x = 124,478.54

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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.