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Finding the Fourth Proportional to 265,305.60, 366,161.00 and 156,429.90

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Solution

The fourth proportional to 265,305.60, 366,161.00 and 156,429.90 is: 215,896.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,305.60 : 366,161.00 = 156,429.90 : x
  2. Step 2: Convert to fraction form
    265,305.60/366,161.00 = 156,429.90/x
  3. Step 3: Cross multiply
    265,305.60x = 366,161.00 × 156,429.90
  4. Step 4: Simplify right side
    265,305.60x = 57,278,529,004.97
  5. Step 5: Solve for x
    x = 57,278,529,004.97/265,305.60
  6. Step 6: Final answer
    x = 215,896.42

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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.