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Finding the Fourth Proportional to 116,256.64, 160,429.44 and 65,954.56

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Solution

The fourth proportional to 116,256.64, 160,429.44 and 65,954.56 is: 91,014.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,256.64 : 160,429.44 = 65,954.56 : x
  2. Step 2: Convert to fraction form
    116,256.64/160,429.44 = 65,954.56/x
  3. Step 3: Cross multiply
    116,256.64x = 160,429.44 × 65,954.56
  4. Step 4: Simplify right side
    116,256.64x = 10,581,053,126.25
  5. Step 5: Solve for x
    x = 10,581,053,126.25/116,256.64
  6. Step 6: Final answer
    x = 91,014.61

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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.