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Finding the Fourth Proportional to 111,625.80, 167,465.70 and 32,742.60

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Solution

The fourth proportional to 111,625.80, 167,465.70 and 32,742.60 is: 49,121.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,625.80 : 167,465.70 = 32,742.60 : x
  2. Step 2: Convert to fraction form
    111,625.80/167,465.70 = 32,742.60/x
  3. Step 3: Cross multiply
    111,625.80x = 167,465.70 × 32,742.60
  4. Step 4: Simplify right side
    111,625.80x = 5,483,262,428.82
  5. Step 5: Solve for x
    x = 5,483,262,428.82/111,625.80
  6. Step 6: Final answer
    x = 49,121.82

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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.