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Finding the Fourth Proportional to 117,593.65, 162,292.44 and 66,609.82

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Solution

The fourth proportional to 117,593.65, 162,292.44 and 66,609.82 is: 91,929.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,593.65 : 162,292.44 = 66,609.82 : x
  2. Step 2: Convert to fraction form
    117,593.65/162,292.44 = 66,609.82/x
  3. Step 3: Cross multiply
    117,593.65x = 162,292.44 × 66,609.82
  4. Step 4: Simplify right side
    117,593.65x = 10,810,270,215.76
  5. Step 5: Solve for x
    x = 10,810,270,215.76/117,593.65
  6. Step 6: Final answer
    x = 91,929.03

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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.