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Finding the Fourth Proportional to 48,698.40, 73,105.20 and 48,352.80

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Solution

The fourth proportional to 48,698.40, 73,105.20 and 48,352.80 is: 72,586.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,698.40 : 73,105.20 = 48,352.80 : x
  2. Step 2: Convert to fraction form
    48,698.40/73,105.20 = 48,352.80/x
  3. Step 3: Cross multiply
    48,698.40x = 73,105.20 × 48,352.80
  4. Step 4: Simplify right side
    48,698.40x = 3,534,841,114.56
  5. Step 5: Solve for x
    x = 3,534,841,114.56/48,698.40
  6. Step 6: Final answer
    x = 72,586.39

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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.