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Finding the Fourth Proportional to 236,359.95, 354,326.69 and 86,495.78

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Solution

The fourth proportional to 236,359.95, 354,326.69 and 86,495.78 is: 129,665.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,359.95 : 354,326.69 = 86,495.78 : x
  2. Step 2: Convert to fraction form
    236,359.95/354,326.69 = 86,495.78/x
  3. Step 3: Cross multiply
    236,359.95x = 354,326.69 × 86,495.78
  4. Step 4: Simplify right side
    236,359.95x = 30,647,761,222.26
  5. Step 5: Solve for x
    x = 30,647,761,222.26/236,359.95
  6. Step 6: Final answer
    x = 129,665.63

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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.