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Finding the Fourth Proportional to 329,900.16, 455,260.32 and 178,993.92

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Solution

The fourth proportional to 329,900.16, 455,260.32 and 178,993.92 is: 247,010.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,900.16 : 455,260.32 = 178,993.92 : x
  2. Step 2: Convert to fraction form
    329,900.16/455,260.32 = 178,993.92/x
  3. Step 3: Cross multiply
    329,900.16x = 455,260.32 × 178,993.92
  4. Step 4: Simplify right side
    329,900.16x = 81,488,829,297.25
  5. Step 5: Solve for x
    x = 81,488,829,297.25/329,900.16
  6. Step 6: Final answer
    x = 247,010.58

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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.