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Finding the Fourth Proportional to 82,151.95, 123,228.90 and 28,845.26

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Solution

The fourth proportional to 82,151.95, 123,228.90 and 28,845.26 is: 43,268.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,151.95 : 123,228.90 = 28,845.26 : x
  2. Step 2: Convert to fraction form
    82,151.95/123,228.90 = 28,845.26/x
  3. Step 3: Cross multiply
    82,151.95x = 123,228.90 × 28,845.26
  4. Step 4: Simplify right side
    82,151.95x = 3,554,569,660.01
  5. Step 5: Solve for x
    x = 3,554,569,660.01/82,151.95
  6. Step 6: Final answer
    x = 43,268.23

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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.