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Finding the Fourth Proportional to 101,067.20, 151,673.70 and 56,646.80

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Solution

The fourth proportional to 101,067.20, 151,673.70 and 56,646.80 is: 85,011.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,067.20 : 151,673.70 = 56,646.80 : x
  2. Step 2: Convert to fraction form
    101,067.20/151,673.70 = 56,646.80/x
  3. Step 3: Cross multiply
    101,067.20x = 151,673.70 × 56,646.80
  4. Step 4: Simplify right side
    101,067.20x = 8,591,829,749.16
  5. Step 5: Solve for x
    x = 8,591,829,749.16/101,067.20
  6. Step 6: Final answer
    x = 85,011.06

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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.