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Finding the Fourth Proportional to 123,509.25, 170,450.19 and 69,793.02

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Solution

The fourth proportional to 123,509.25, 170,450.19 and 69,793.02 is: 96,318.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,509.25 : 170,450.19 = 69,793.02 : x
  2. Step 2: Convert to fraction form
    123,509.25/170,450.19 = 69,793.02/x
  3. Step 3: Cross multiply
    123,509.25x = 170,450.19 × 69,793.02
  4. Step 4: Simplify right side
    123,509.25x = 11,896,233,519.67
  5. Step 5: Solve for x
    x = 11,896,233,519.67/123,509.25
  6. Step 6: Final answer
    x = 96,318.56

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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.