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Finding the Fourth Proportional to 67,923.20, 101,961.60 and 52,409.60

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Solution

The fourth proportional to 67,923.20, 101,961.60 and 52,409.60 is: 78,673.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,923.20 : 101,961.60 = 52,409.60 : x
  2. Step 2: Convert to fraction form
    67,923.20/101,961.60 = 52,409.60/x
  3. Step 3: Cross multiply
    67,923.20x = 101,961.60 × 52,409.60
  4. Step 4: Simplify right side
    67,923.20x = 5,343,766,671.36
  5. Step 5: Solve for x
    x = 5,343,766,671.36/67,923.20
  6. Step 6: Final answer
    x = 78,673.66

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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.