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Finding the Fourth Proportional to 82,760.99, 123,902.10 and 74,214.68

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Solution

The fourth proportional to 82,760.99, 123,902.10 and 74,214.68 is: 111,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,760.99 : 123,902.10 = 74,214.68 : x
  2. Step 2: Convert to fraction form
    82,760.99/123,902.10 = 74,214.68/x
  3. Step 3: Cross multiply
    82,760.99x = 123,902.10 × 74,214.68
  4. Step 4: Simplify right side
    82,760.99x = 9,195,354,083.32
  5. Step 5: Solve for x
    x = 9,195,354,083.32/82,760.99
  6. Step 6: Final answer
    x = 111,107.35

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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.