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Finding the Fourth Proportional to 115,891.80, 173,837.70 and 96,208.80

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Solution

The fourth proportional to 115,891.80, 173,837.70 and 96,208.80 is: 144,313.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,891.80 : 173,837.70 = 96,208.80 : x
  2. Step 2: Convert to fraction form
    115,891.80/173,837.70 = 96,208.80/x
  3. Step 3: Cross multiply
    115,891.80x = 173,837.70 × 96,208.80
  4. Step 4: Simplify right side
    115,891.80x = 16,724,716,511.76
  5. Step 5: Solve for x
    x = 16,724,716,511.76/115,891.80
  6. Step 6: Final answer
    x = 144,313.20

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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.