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Finding the Fourth Proportional to 216,991.26, 325,536.57 and 83,872.62

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Solution

The fourth proportional to 216,991.26, 325,536.57 and 83,872.62 is: 125,828.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,991.26 : 325,536.57 = 83,872.62 : x
  2. Step 2: Convert to fraction form
    216,991.26/325,536.57 = 83,872.62/x
  3. Step 3: Cross multiply
    216,991.26x = 325,536.57 × 83,872.62
  4. Step 4: Simplify right side
    216,991.26x = 27,303,605,031.71
  5. Step 5: Solve for x
    x = 27,303,605,031.71/216,991.26
  6. Step 6: Final answer
    x = 125,828.13

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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.