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Finding the Fourth Proportional to 236,494.10, 354,631.80 and 103,305.80

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Solution

The fourth proportional to 236,494.10, 354,631.80 and 103,305.80 is: 154,910.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,494.10 : 354,631.80 = 103,305.80 : x
  2. Step 2: Convert to fraction form
    236,494.10/354,631.80 = 103,305.80/x
  3. Step 3: Cross multiply
    236,494.10x = 354,631.80 × 103,305.80
  4. Step 4: Simplify right side
    236,494.10x = 36,635,521,804.44
  5. Step 5: Solve for x
    x = 36,635,521,804.44/236,494.10
  6. Step 6: Final answer
    x = 154,910.93

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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.