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Finding the Fourth Proportional to 111,930.89, 154,461.03 and 66,598.46

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Solution

The fourth proportional to 111,930.89, 154,461.03 and 66,598.46 is: 91,903.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,930.89 : 154,461.03 = 66,598.46 : x
  2. Step 2: Convert to fraction form
    111,930.89/154,461.03 = 66,598.46/x
  3. Step 3: Cross multiply
    111,930.89x = 154,461.03 × 66,598.46
  4. Step 4: Simplify right side
    111,930.89x = 10,286,866,728.01
  5. Step 5: Solve for x
    x = 10,286,866,728.01/111,930.89
  6. Step 6: Final answer
    x = 91,903.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.