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Finding the Fourth Proportional to 115,858.40, 173,852.40 and 49,287.20

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Solution

The fourth proportional to 115,858.40, 173,852.40 and 49,287.20 is: 73,958.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,858.40 : 173,852.40 = 49,287.20 : x
  2. Step 2: Convert to fraction form
    115,858.40/173,852.40 = 49,287.20/x
  3. Step 3: Cross multiply
    115,858.40x = 173,852.40 × 49,287.20
  4. Step 4: Simplify right side
    115,858.40x = 8,568,698,009.28
  5. Step 5: Solve for x
    x = 8,568,698,009.28/115,858.40
  6. Step 6: Final answer
    x = 73,958.37

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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.