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Finding the Fourth Proportional to 111,303.81, 166,971.33 and 36,429.84

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Solution

The fourth proportional to 111,303.81, 166,971.33 and 36,429.84 is: 54,649.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,303.81 : 166,971.33 = 36,429.84 : x
  2. Step 2: Convert to fraction form
    111,303.81/166,971.33 = 36,429.84/x
  3. Step 3: Cross multiply
    111,303.81x = 166,971.33 × 36,429.84
  4. Step 4: Simplify right side
    111,303.81x = 6,082,738,836.49
  5. Step 5: Solve for x
    x = 6,082,738,836.49/111,303.81
  6. Step 6: Final answer
    x = 54,649.87

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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.