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Finding the Fourth Proportional to 117,179.88, 161,707.43 and 63,463.67

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Solution

The fourth proportional to 117,179.88, 161,707.43 and 63,463.67 is: 87,579.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,179.88 : 161,707.43 = 63,463.67 : x
  2. Step 2: Convert to fraction form
    117,179.88/161,707.43 = 63,463.67/x
  3. Step 3: Cross multiply
    117,179.88x = 161,707.43 × 63,463.67
  4. Step 4: Simplify right side
    117,179.88x = 10,262,545,967.21
  5. Step 5: Solve for x
    x = 10,262,545,967.21/117,179.88
  6. Step 6: Final answer
    x = 87,579.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.