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Finding the Fourth Proportional to 100,451.92, 150,825.84 and 56,165.44

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Solution

The fourth proportional to 100,451.92, 150,825.84 and 56,165.44 is: 84,330.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,451.92 : 150,825.84 = 56,165.44 : x
  2. Step 2: Convert to fraction form
    100,451.92/150,825.84 = 56,165.44/x
  3. Step 3: Cross multiply
    100,451.92x = 150,825.84 × 56,165.44
  4. Step 4: Simplify right side
    100,451.92x = 8,471,199,666.97
  5. Step 5: Solve for x
    x = 8,471,199,666.97/100,451.92
  6. Step 6: Final answer
    x = 84,330.89

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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.