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Finding the Fourth Proportional to 329,745.57, 455,059.22 and 186,502.83

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Solution

The fourth proportional to 329,745.57, 455,059.22 and 186,502.83 is: 257,379.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,745.57 : 455,059.22 = 186,502.83 : x
  2. Step 2: Convert to fraction form
    329,745.57/455,059.22 = 186,502.83/x
  3. Step 3: Cross multiply
    329,745.57x = 455,059.22 × 186,502.83
  4. Step 4: Simplify right side
    329,745.57x = 84,869,831,415.08
  5. Step 5: Solve for x
    x = 84,869,831,415.08/329,745.57
  6. Step 6: Final answer
    x = 257,379.75

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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.