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Finding the Fourth Proportional to 117,049.87, 161,528.79 and 63,334.92

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Solution

The fourth proportional to 117,049.87, 161,528.79 and 63,334.92 is: 87,402.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,049.87 : 161,528.79 = 63,334.92 : x
  2. Step 2: Convert to fraction form
    117,049.87/161,528.79 = 63,334.92/x
  3. Step 3: Cross multiply
    117,049.87x = 161,528.79 × 63,334.92
  4. Step 4: Simplify right side
    117,049.87x = 10,230,412,992.35
  5. Step 5: Solve for x
    x = 10,230,412,992.35/117,049.87
  6. Step 6: Final answer
    x = 87,402.17

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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.