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Finding the Fourth Proportional to 71,451.82, 107,178.64 and 49,259.26

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Solution

The fourth proportional to 71,451.82, 107,178.64 and 49,259.26 is: 73,889.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,451.82 : 107,178.64 = 49,259.26 : x
  2. Step 2: Convert to fraction form
    71,451.82/107,178.64 = 49,259.26/x
  3. Step 3: Cross multiply
    71,451.82x = 107,178.64 × 49,259.26
  4. Step 4: Simplify right side
    71,451.82x = 5,279,540,494.21
  5. Step 5: Solve for x
    x = 5,279,540,494.21/71,451.82
  6. Step 6: Final answer
    x = 73,889.52

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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.