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Finding the Fourth Proportional to 123,660.68, 170,465.70 and 96,756.48

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Solution

The fourth proportional to 123,660.68, 170,465.70 and 96,756.48 is: 133,378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,660.68 : 170,465.70 = 96,756.48 : x
  2. Step 2: Convert to fraction form
    123,660.68/170,465.70 = 96,756.48/x
  3. Step 3: Cross multiply
    123,660.68x = 170,465.70 × 96,756.48
  4. Step 4: Simplify right side
    123,660.68x = 16,493,661,092.74
  5. Step 5: Solve for x
    x = 16,493,661,092.74/123,660.68
  6. Step 6: Final answer
    x = 133,378.38

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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.