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Finding the Fourth Proportional to 72,328.60, 108,752.10 and 60,923.80

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Solution

The fourth proportional to 72,328.60, 108,752.10 and 60,923.80 is: 91,604.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,328.60 : 108,752.10 = 60,923.80 : x
  2. Step 2: Convert to fraction form
    72,328.60/108,752.10 = 60,923.80/x
  3. Step 3: Cross multiply
    72,328.60x = 108,752.10 × 60,923.80
  4. Step 4: Simplify right side
    72,328.60x = 6,625,591,189.98
  5. Step 5: Solve for x
    x = 6,625,591,189.98/72,328.60
  6. Step 6: Final answer
    x = 91,604.03

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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.