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Finding the Fourth Proportional to 111,668.84, 167,527.86 and 61,821.62

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Solution

The fourth proportional to 111,668.84, 167,527.86 and 61,821.62 is: 92,746.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,668.84 : 167,527.86 = 61,821.62 : x
  2. Step 2: Convert to fraction form
    111,668.84/167,527.86 = 61,821.62/x
  3. Step 3: Cross multiply
    111,668.84x = 167,527.86 × 61,821.62
  4. Step 4: Simplify right side
    111,668.84x = 10,356,843,700.33
  5. Step 5: Solve for x
    x = 10,356,843,700.33/111,668.84
  6. Step 6: Final answer
    x = 92,746.05

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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.