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Finding the Fourth Proportional to 107,131.92, 160,637.64 and 43,934.64

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Solution

The fourth proportional to 107,131.92, 160,637.64 and 43,934.64 is: 65,877.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,131.92 : 160,637.64 = 43,934.64 : x
  2. Step 2: Convert to fraction form
    107,131.92/160,637.64 = 43,934.64/x
  3. Step 3: Cross multiply
    107,131.92x = 160,637.64 × 43,934.64
  4. Step 4: Simplify right side
    107,131.92x = 7,057,556,883.85
  5. Step 5: Solve for x
    x = 7,057,556,883.85/107,131.92
  6. Step 6: Final answer
    x = 65,877.26

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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.