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Finding the Fourth Proportional to 53,467.20, 80,200.80 and 45,010.80

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Solution

The fourth proportional to 53,467.20, 80,200.80 and 45,010.80 is: 67,516.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,467.20 : 80,200.80 = 45,010.80 : x
  2. Step 2: Convert to fraction form
    53,467.20/80,200.80 = 45,010.80/x
  3. Step 3: Cross multiply
    53,467.20x = 80,200.80 × 45,010.80
  4. Step 4: Simplify right side
    53,467.20x = 3,609,902,168.64
  5. Step 5: Solve for x
    x = 3,609,902,168.64/53,467.20
  6. Step 6: Final answer
    x = 67,516.20

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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.