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Finding the Fourth Proportional to 148,367.64, 204,745.14 and 80,382.72

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Solution

The fourth proportional to 148,367.64, 204,745.14 and 80,382.72 is: 110,926.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,367.64 : 204,745.14 = 80,382.72 : x
  2. Step 2: Convert to fraction form
    148,367.64/204,745.14 = 80,382.72/x
  3. Step 3: Cross multiply
    148,367.64x = 204,745.14 × 80,382.72
  4. Step 4: Simplify right side
    148,367.64x = 16,457,971,259.98
  5. Step 5: Solve for x
    x = 16,457,971,259.98/148,367.64
  6. Step 6: Final answer
    x = 110,926.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.