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Finding the Fourth Proportional to 117,404.40, 176,203.80 and 54,321.60

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Solution

The fourth proportional to 117,404.40, 176,203.80 and 54,321.60 is: 81,527.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,404.40 : 176,203.80 = 54,321.60 : x
  2. Step 2: Convert to fraction form
    117,404.40/176,203.80 = 54,321.60/x
  3. Step 3: Cross multiply
    117,404.40x = 176,203.80 × 54,321.60
  4. Step 4: Simplify right side
    117,404.40x = 9,571,672,342.08
  5. Step 5: Solve for x
    x = 9,571,672,342.08/117,404.40
  6. Step 6: Final answer
    x = 81,527.37

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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.