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Finding the Fourth Proportional to 116,505.92, 160,713.24 and 80,716.88

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Solution

The fourth proportional to 116,505.92, 160,713.24 and 80,716.88 is: 111,344.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,505.92 : 160,713.24 = 80,716.88 : x
  2. Step 2: Convert to fraction form
    116,505.92/160,713.24 = 80,716.88/x
  3. Step 3: Cross multiply
    116,505.92x = 160,713.24 × 80,716.88
  4. Step 4: Simplify right side
    116,505.92x = 12,972,271,307.49
  5. Step 5: Solve for x
    x = 12,972,271,307.49/116,505.92
  6. Step 6: Final answer
    x = 111,344.31

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1.5x scale

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.