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Finding the Fourth Proportional to 110,143.80, 164,887.65 and 65,747.70

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Solution

The fourth proportional to 110,143.80, 164,887.65 and 65,747.70 is: 98,425.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,143.80 : 164,887.65 = 65,747.70 : x
  2. Step 2: Convert to fraction form
    110,143.80/164,887.65 = 65,747.70/x
  3. Step 3: Cross multiply
    110,143.80x = 164,887.65 × 65,747.70
  4. Step 4: Simplify right side
    110,143.80x = 10,840,983,745.91
  5. Step 5: Solve for x
    x = 10,840,983,745.91/110,143.80
  6. Step 6: Final answer
    x = 98,425.73

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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.