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Finding the Fourth Proportional to 111,251.95, 166,928.95 and 60,666.64

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Solution

The fourth proportional to 111,251.95, 166,928.95 and 60,666.64 is: 91,027.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,251.95 : 166,928.95 = 60,666.64 : x
  2. Step 2: Convert to fraction form
    111,251.95/166,928.95 = 60,666.64/x
  3. Step 3: Cross multiply
    111,251.95x = 166,928.95 × 60,666.64
  4. Step 4: Simplify right side
    111,251.95x = 10,127,018,173.74
  5. Step 5: Solve for x
    x = 10,127,018,173.74/111,251.95
  6. Step 6: Final answer
    x = 91,027.78

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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.