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Finding the Fourth Proportional to 111,841.47, 154,290.37 and 66,493.73

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Solution

The fourth proportional to 111,841.47, 154,290.37 and 66,493.73 is: 91,731.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,841.47 : 154,290.37 = 66,493.73 : x
  2. Step 2: Convert to fraction form
    111,841.47/154,290.37 = 66,493.73/x
  3. Step 3: Cross multiply
    111,841.47x = 154,290.37 × 66,493.73
  4. Step 4: Simplify right side
    111,841.47x = 10,259,342,204.38
  5. Step 5: Solve for x
    x = 10,259,342,204.38/111,841.47
  6. Step 6: Final answer
    x = 91,731.11

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1.5x scale

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.