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Finding the Fourth Proportional to 117,243.90, 161,797.23 and 63,528.96

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Solution

The fourth proportional to 117,243.90, 161,797.23 and 63,528.96 is: 87,670.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,243.90 : 161,797.23 = 63,528.96 : x
  2. Step 2: Convert to fraction form
    117,243.90/161,797.23 = 63,528.96/x
  3. Step 3: Cross multiply
    117,243.90x = 161,797.23 × 63,528.96
  4. Step 4: Simplify right side
    117,243.90x = 10,278,809,752.78
  5. Step 5: Solve for x
    x = 10,278,809,752.78/117,243.90
  6. Step 6: Final answer
    x = 87,670.32

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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.