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Finding the Fourth Proportional to 111,457.12, 167,185.12 and 39,463.44

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Solution

The fourth proportional to 111,457.12, 167,185.12 and 39,463.44 is: 59,194.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,457.12 : 167,185.12 = 39,463.44 : x
  2. Step 2: Convert to fraction form
    111,457.12/167,185.12 = 39,463.44/x
  3. Step 3: Cross multiply
    111,457.12x = 167,185.12 × 39,463.44
  4. Step 4: Simplify right side
    111,457.12x = 6,597,699,952.01
  5. Step 5: Solve for x
    x = 6,597,699,952.01/111,457.12
  6. Step 6: Final answer
    x = 59,194.96

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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.