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Finding the Fourth Proportional to 303,785.12, 455,674.98 and 101,396.54

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Solution

The fourth proportional to 303,785.12, 455,674.98 and 101,396.54 is: 152,093.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,785.12 : 455,674.98 = 101,396.54 : x
  2. Step 2: Convert to fraction form
    303,785.12/455,674.98 = 101,396.54/x
  3. Step 3: Cross multiply
    303,785.12x = 455,674.98 × 101,396.54
  4. Step 4: Simplify right side
    303,785.12x = 46,203,866,336.57
  5. Step 5: Solve for x
    x = 46,203,866,336.57/303,785.12
  6. Step 6: Final answer
    x = 152,093.91

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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.