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Finding the Fourth Proportional to 157,481.94, 236,320.87 and 63,987.69

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Solution

The fourth proportional to 157,481.94, 236,320.87 and 63,987.69 is: 96,021.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,481.94 : 236,320.87 = 63,987.69 : x
  2. Step 2: Convert to fraction form
    157,481.94/236,320.87 = 63,987.69/x
  3. Step 3: Cross multiply
    157,481.94x = 236,320.87 × 63,987.69
  4. Step 4: Simplify right side
    157,481.94x = 15,121,626,570.09
  5. Step 5: Solve for x
    x = 15,121,626,570.09/157,481.94
  6. Step 6: Final answer
    x = 96,021.34

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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.