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Finding the Fourth Proportional to 168,763.80, 253,148.70 and 50,436.60

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Solution

The fourth proportional to 168,763.80, 253,148.70 and 50,436.60 is: 75,655.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,763.80 : 253,148.70 = 50,436.60 : x
  2. Step 2: Convert to fraction form
    168,763.80/253,148.70 = 50,436.60/x
  3. Step 3: Cross multiply
    168,763.80x = 253,148.70 × 50,436.60
  4. Step 4: Simplify right side
    168,763.80x = 12,767,959,722.42
  5. Step 5: Solve for x
    x = 12,767,959,722.42/168,763.80
  6. Step 6: Final answer
    x = 75,655.80

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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.