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Finding the Fourth Proportional to 117,744.45, 162,430.21 and 69,963.97

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Solution

The fourth proportional to 117,744.45, 162,430.21 and 69,963.97 is: 96,516.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,744.45 : 162,430.21 = 69,963.97 : x
  2. Step 2: Convert to fraction form
    117,744.45/162,430.21 = 69,963.97/x
  3. Step 3: Cross multiply
    117,744.45x = 162,430.21 × 69,963.97
  4. Step 4: Simplify right side
    117,744.45x = 11,364,262,020.91
  5. Step 5: Solve for x
    x = 11,364,262,020.91/117,744.45
  6. Step 6: Final answer
    x = 96,516.33

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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.