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Finding the Fourth Proportional to 110,960.80, 166,462.80 and 47,780.80

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Solution

The fourth proportional to 110,960.80, 166,462.80 and 47,780.80 is: 71,680.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,960.80 : 166,462.80 = 47,780.80 : x
  2. Step 2: Convert to fraction form
    110,960.80/166,462.80 = 47,780.80/x
  3. Step 3: Cross multiply
    110,960.80x = 166,462.80 × 47,780.80
  4. Step 4: Simplify right side
    110,960.80x = 7,953,725,754.24
  5. Step 5: Solve for x
    x = 7,953,725,754.24/110,960.80
  6. Step 6: Final answer
    x = 71,680.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.