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Finding the Fourth Proportional to 333,693.81, 500,536.50 and 80,976.38

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Solution

The fourth proportional to 333,693.81, 500,536.50 and 80,976.38 is: 121,463.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,693.81 : 500,536.50 = 80,976.38 : x
  2. Step 2: Convert to fraction form
    333,693.81/500,536.50 = 80,976.38/x
  3. Step 3: Cross multiply
    333,693.81x = 500,536.50 × 80,976.38
  4. Step 4: Simplify right side
    333,693.81x = 40,531,631,021.53
  5. Step 5: Solve for x
    x = 40,531,631,021.53/333,693.81
  6. Step 6: Final answer
    x = 121,463.54

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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.