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Finding the Fourth Proportional to 115,959.80, 173,799.30 and 49,259.90

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Solution

The fourth proportional to 115,959.80, 173,799.30 and 49,259.90 is: 73,830.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,959.80 : 173,799.30 = 49,259.90 : x
  2. Step 2: Convert to fraction form
    115,959.80/173,799.30 = 49,259.90/x
  3. Step 3: Cross multiply
    115,959.80x = 173,799.30 × 49,259.90
  4. Step 4: Simplify right side
    115,959.80x = 8,561,336,138.07
  5. Step 5: Solve for x
    x = 8,561,336,138.07/115,959.80
  6. Step 6: Final answer
    x = 73,830.21

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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.