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Finding the Fourth Proportional to 171,465.28, 236,684.19 and 139,578.82

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Solution

The fourth proportional to 171,465.28, 236,684.19 and 139,578.82 is: 192,669.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,465.28 : 236,684.19 = 139,578.82 : x
  2. Step 2: Convert to fraction form
    171,465.28/236,684.19 = 139,578.82/x
  3. Step 3: Cross multiply
    171,465.28x = 236,684.19 × 139,578.82
  4. Step 4: Simplify right side
    171,465.28x = 33,036,099,884.57
  5. Step 5: Solve for x
    x = 33,036,099,884.57/171,465.28
  6. Step 6: Final answer
    x = 192,669.33

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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.