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Finding the Fourth Proportional to 123,668.16, 170,728.24 and 96,753.52

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Solution

The fourth proportional to 123,668.16, 170,728.24 and 96,753.52 is: 133,571.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,668.16 : 170,728.24 = 96,753.52 : x
  2. Step 2: Convert to fraction form
    123,668.16/170,728.24 = 96,753.52/x
  3. Step 3: Cross multiply
    123,668.16x = 170,728.24 × 96,753.52
  4. Step 4: Simplify right side
    123,668.16x = 16,518,558,183.40
  5. Step 5: Solve for x
    x = 16,518,558,183.40/123,668.16
  6. Step 6: Final answer
    x = 133,571.63

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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.