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Finding the Fourth Proportional to 116,523.64, 160,789.50 and 65,535.22

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Solution

The fourth proportional to 116,523.64, 160,789.50 and 65,535.22 is: 90,431.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,523.64 : 160,789.50 = 65,535.22 : x
  2. Step 2: Convert to fraction form
    116,523.64/160,789.50 = 65,535.22/x
  3. Step 3: Cross multiply
    116,523.64x = 160,789.50 × 65,535.22
  4. Step 4: Simplify right side
    116,523.64x = 10,537,375,256.19
  5. Step 5: Solve for x
    x = 10,537,375,256.19/116,523.64
  6. Step 6: Final answer
    x = 90,431.22

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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.