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Finding the Fourth Proportional to 111,009.76, 166,503.70 and 36,126.88

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Solution

The fourth proportional to 111,009.76, 166,503.70 and 36,126.88 is: 54,186.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,009.76 : 166,503.70 = 36,126.88 : x
  2. Step 2: Convert to fraction form
    111,009.76/166,503.70 = 36,126.88/x
  3. Step 3: Cross multiply
    111,009.76x = 166,503.70 × 36,126.88
  4. Step 4: Simplify right side
    111,009.76x = 6,015,259,189.46
  5. Step 5: Solve for x
    x = 6,015,259,189.46/111,009.76
  6. Step 6: Final answer
    x = 54,186.76

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1.5x scale

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.