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Finding the Fourth Proportional to 111,668.98, 167,482.81 and 50,864.91

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Solution

The fourth proportional to 111,668.98, 167,482.81 and 50,864.91 is: 76,287.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,668.98 : 167,482.81 = 50,864.91 : x
  2. Step 2: Convert to fraction form
    111,668.98/167,482.81 = 50,864.91/x
  3. Step 3: Cross multiply
    111,668.98x = 167,482.81 × 50,864.91
  4. Step 4: Simplify right side
    111,668.98x = 8,518,998,057.20
  5. Step 5: Solve for x
    x = 8,518,998,057.20/111,668.98
  6. Step 6: Final answer
    x = 76,287.95

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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.