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Finding the Fourth Proportional to 123,766.80, 185,650.20 and 73,903.20

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Solution

The fourth proportional to 123,766.80, 185,650.20 and 73,903.20 is: 110,854.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,766.80 : 185,650.20 = 73,903.20 : x
  2. Step 2: Convert to fraction form
    123,766.80/185,650.20 = 73,903.20/x
  3. Step 3: Cross multiply
    123,766.80x = 185,650.20 × 73,903.20
  4. Step 4: Simplify right side
    123,766.80x = 13,720,143,860.64
  5. Step 5: Solve for x
    x = 13,720,143,860.64/123,766.80
  6. Step 6: Final answer
    x = 110,854.80

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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.