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Finding the Fourth Proportional to 60,673.80, 90,816.30 and 47,454.60

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Solution

The fourth proportional to 60,673.80, 90,816.30 and 47,454.60 is: 71,029.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,673.80 : 90,816.30 = 47,454.60 : x
  2. Step 2: Convert to fraction form
    60,673.80/90,816.30 = 47,454.60/x
  3. Step 3: Cross multiply
    60,673.80x = 90,816.30 × 47,454.60
  4. Step 4: Simplify right side
    60,673.80x = 4,309,651,189.98
  5. Step 5: Solve for x
    x = 4,309,651,189.98/60,673.80
  6. Step 6: Final answer
    x = 71,029.85

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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.