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Finding the Fourth Proportional to 113,943.16, 170,881.80 and 43,805.80

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Solution

The fourth proportional to 113,943.16, 170,881.80 and 43,805.80 is: 65,696.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,943.16 : 170,881.80 = 43,805.80 : x
  2. Step 2: Convert to fraction form
    113,943.16/170,881.80 = 43,805.80/x
  3. Step 3: Cross multiply
    113,943.16x = 170,881.80 × 43,805.80
  4. Step 4: Simplify right side
    113,943.16x = 7,485,613,954.44
  5. Step 5: Solve for x
    x = 7,485,613,954.44/113,943.16
  6. Step 6: Final answer
    x = 65,696.04

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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.