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Finding the Fourth Proportional to 67,295.80, 100,830.30 and 53,201.80

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Solution

The fourth proportional to 67,295.80, 100,830.30 and 53,201.80 is: 79,713.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,295.80 : 100,830.30 = 53,201.80 : x
  2. Step 2: Convert to fraction form
    67,295.80/100,830.30 = 53,201.80/x
  3. Step 3: Cross multiply
    67,295.80x = 100,830.30 × 53,201.80
  4. Step 4: Simplify right side
    67,295.80x = 5,364,353,454.54
  5. Step 5: Solve for x
    x = 5,364,353,454.54/67,295.80
  6. Step 6: Final answer
    x = 79,713.05

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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.