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Finding the Fourth Proportional to 82,414.80, 123,622.20 and 73,861.20

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Solution

The fourth proportional to 82,414.80, 123,622.20 and 73,861.20 is: 110,791.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,414.80 : 123,622.20 = 73,861.20 : x
  2. Step 2: Convert to fraction form
    82,414.80/123,622.20 = 73,861.20/x
  3. Step 3: Cross multiply
    82,414.80x = 123,622.20 × 73,861.20
  4. Step 4: Simplify right side
    82,414.80x = 9,130,884,038.64
  5. Step 5: Solve for x
    x = 9,130,884,038.64/82,414.80
  6. Step 6: Final answer
    x = 110,791.80

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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.