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Finding the Fourth Proportional to 176,329.91, 264,539.60 and 81,628.41

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Solution

The fourth proportional to 176,329.91, 264,539.60 and 81,628.41 is: 122,463.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,329.91 : 264,539.60 = 81,628.41 : x
  2. Step 2: Convert to fraction form
    176,329.91/264,539.60 = 81,628.41/x
  3. Step 3: Cross multiply
    176,329.91x = 264,539.60 × 81,628.41
  4. Step 4: Simplify right side
    176,329.91x = 21,593,946,521.89
  5. Step 5: Solve for x
    x = 21,593,946,521.89/176,329.91
  6. Step 6: Final answer
    x = 122,463.33

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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.