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Finding the Fourth Proportional to 116,696.17, 161,041.67 and 66,398.41

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Solution

The fourth proportional to 116,696.17, 161,041.67 and 66,398.41 is: 91,630.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,696.17 : 161,041.67 = 66,398.41 : x
  2. Step 2: Convert to fraction form
    116,696.17/161,041.67 = 66,398.41/x
  3. Step 3: Cross multiply
    116,696.17x = 161,041.67 × 66,398.41
  4. Step 4: Simplify right side
    116,696.17x = 10,692,910,831.74
  5. Step 5: Solve for x
    x = 10,692,910,831.74/116,696.17
  6. Step 6: Final answer
    x = 91,630.35

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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.