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Finding the Fourth Proportional to 86,097.26, 118,837.68 and 55,880.82

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Solution

The fourth proportional to 86,097.26, 118,837.68 and 55,880.82 is: 77,130.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,097.26 : 118,837.68 = 55,880.82 : x
  2. Step 2: Convert to fraction form
    86,097.26/118,837.68 = 55,880.82/x
  3. Step 3: Cross multiply
    86,097.26x = 118,837.68 × 55,880.82
  4. Step 4: Simplify right side
    86,097.26x = 6,640,747,005.30
  5. Step 5: Solve for x
    x = 6,640,747,005.30/86,097.26
  6. Step 6: Final answer
    x = 77,130.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.