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Finding the Fourth Proportional to 116,546.60, 160,696.76 and 79,770.58

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Solution

The fourth proportional to 116,546.60, 160,696.76 and 79,770.58 is: 109,989.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,546.60 : 160,696.76 = 79,770.58 : x
  2. Step 2: Convert to fraction form
    116,546.60/160,696.76 = 79,770.58/x
  3. Step 3: Cross multiply
    116,546.60x = 160,696.76 × 79,770.58
  4. Step 4: Simplify right side
    116,546.60x = 12,818,872,948.73
  5. Step 5: Solve for x
    x = 12,818,872,948.73/116,546.60
  6. Step 6: Final answer
    x = 109,989.25

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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.