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Finding the Fourth Proportional to 123,737.20, 170,757.24 and 70,021.24

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Solution

The fourth proportional to 123,737.20, 170,757.24 and 70,021.24 is: 96,629.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,737.20 : 170,757.24 = 70,021.24 : x
  2. Step 2: Convert to fraction form
    123,737.20/170,757.24 = 70,021.24/x
  3. Step 3: Cross multiply
    123,737.20x = 170,757.24 × 70,021.24
  4. Step 4: Simplify right side
    123,737.20x = 11,956,632,829.99
  5. Step 5: Solve for x
    x = 11,956,632,829.99/123,737.20
  6. Step 6: Final answer
    x = 96,629.25

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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.