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Finding the Fourth Proportional to 60,530.20, 90,698.10 and 50,615.80

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Solution

The fourth proportional to 60,530.20, 90,698.10 and 50,615.80 is: 75,842.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,530.20 : 90,698.10 = 50,615.80 : x
  2. Step 2: Convert to fraction form
    60,530.20/90,698.10 = 50,615.80/x
  3. Step 3: Cross multiply
    60,530.20x = 90,698.10 × 50,615.80
  4. Step 4: Simplify right side
    60,530.20x = 4,590,756,889.98
  5. Step 5: Solve for x
    x = 4,590,756,889.98/60,530.20
  6. Step 6: Final answer
    x = 75,842.42

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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.