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Finding the Fourth Proportional to 116,696.25, 161,031.24 and 65,692.69

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Solution

The fourth proportional to 116,696.25, 161,031.24 and 65,692.69 is: 90,650.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,696.25 : 161,031.24 = 65,692.69 : x
  2. Step 2: Convert to fraction form
    116,696.25/161,031.24 = 65,692.69/x
  3. Step 3: Cross multiply
    116,696.25x = 161,031.24 × 65,692.69
  4. Step 4: Simplify right side
    116,696.25x = 10,578,574,927.06
  5. Step 5: Solve for x
    x = 10,578,574,927.06/116,696.25
  6. Step 6: Final answer
    x = 90,650.51

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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.