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Finding the Fourth Proportional to 111,654, 154,082.60 and 61,353.36

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Solution

The fourth proportional to 111,654, 154,082.60 and 61,353.36 is: 84,667.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,654 : 154,082.60 = 61,353.36 : x
  2. Step 2: Convert to fraction form
    111,654/154,082.60 = 61,353.36/x
  3. Step 3: Cross multiply
    111,654x = 154,082.60 × 61,353.36
  4. Step 4: Simplify right side
    111,654x = 9,453,485,227.54
  5. Step 5: Solve for x
    x = 9,453,485,227.54/111,654
  6. Step 6: Final answer
    x = 84,667.68

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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.