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Finding the Fourth Proportional to 111,939.41, 167,909.12 and 37,039.45

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Solution

The fourth proportional to 111,939.41, 167,909.12 and 37,039.45 is: 55,559.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,939.41 : 167,909.12 = 37,039.45 : x
  2. Step 2: Convert to fraction form
    111,939.41/167,909.12 = 37,039.45/x
  3. Step 3: Cross multiply
    111,939.41x = 167,909.12 × 37,039.45
  4. Step 4: Simplify right side
    111,939.41x = 6,219,261,454.78
  5. Step 5: Solve for x
    x = 6,219,261,454.78/111,939.41
  6. Step 6: Final answer
    x = 55,559.18

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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.