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Finding the Fourth Proportional to 192,465.77, 288,710.46 and 74,137.46

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Solution

The fourth proportional to 192,465.77, 288,710.46 and 74,137.46 is: 111,210.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,465.77 : 288,710.46 = 74,137.46 : x
  2. Step 2: Convert to fraction form
    192,465.77/288,710.46 = 74,137.46/x
  3. Step 3: Cross multiply
    192,465.77x = 288,710.46 × 74,137.46
  4. Step 4: Simplify right side
    192,465.77x = 21,404,258,736.28
  5. Step 5: Solve for x
    x = 21,404,258,736.28/192,465.77
  6. Step 6: Final answer
    x = 111,210.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.