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Finding the Fourth Proportional to 329,965.16, 455,351.90 and 179,062.16

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Solution

The fourth proportional to 329,965.16, 455,351.90 and 179,062.16 is: 247,105.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,965.16 : 455,351.90 = 179,062.16 : x
  2. Step 2: Convert to fraction form
    329,965.16/455,351.90 = 179,062.16/x
  3. Step 3: Cross multiply
    329,965.16x = 455,351.90 × 179,062.16
  4. Step 4: Simplify right side
    329,965.16x = 81,536,294,774.10
  5. Step 5: Solve for x
    x = 81,536,294,774.10/329,965.16
  6. Step 6: Final answer
    x = 247,105.77

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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.