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Finding the Fourth Proportional to 71,479.90, 107,254.79 and 50,554.42

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Solution

The fourth proportional to 71,479.90, 107,254.79 and 50,554.42 is: 75,856.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,479.90 : 107,254.79 = 50,554.42 : x
  2. Step 2: Convert to fraction form
    71,479.90/107,254.79 = 50,554.42/x
  3. Step 3: Cross multiply
    71,479.90x = 107,254.79 × 50,554.42
  4. Step 4: Simplify right side
    71,479.90x = 5,422,203,369.34
  5. Step 5: Solve for x
    x = 5,422,203,369.34/71,479.90
  6. Step 6: Final answer
    x = 75,856.34

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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.