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Finding the Fourth Proportional to 176,578.40, 264,637.20 and 81,797.60

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Solution

The fourth proportional to 176,578.40, 264,637.20 and 81,797.60 is: 122,589.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,578.40 : 264,637.20 = 81,797.60 : x
  2. Step 2: Convert to fraction form
    176,578.40/264,637.20 = 81,797.60/x
  3. Step 3: Cross multiply
    176,578.40x = 264,637.20 × 81,797.60
  4. Step 4: Simplify right side
    176,578.40x = 21,646,687,830.72
  5. Step 5: Solve for x
    x = 21,646,687,830.72/176,578.40
  6. Step 6: Final answer
    x = 122,589.67

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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.