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Finding the Fourth Proportional to 236,555.86, 354,702.51 and 78,698.14

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Solution

The fourth proportional to 236,555.86, 354,702.51 and 78,698.14 is: 118,003.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,555.86 : 354,702.51 = 78,698.14 : x
  2. Step 2: Convert to fraction form
    236,555.86/354,702.51 = 78,698.14/x
  3. Step 3: Cross multiply
    236,555.86x = 354,702.51 × 78,698.14
  4. Step 4: Simplify right side
    236,555.86x = 27,914,427,790.33
  5. Step 5: Solve for x
    x = 27,914,427,790.33/236,555.86
  6. Step 6: Final answer
    x = 118,003.54

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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.