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Finding the Fourth Proportional to 333,699.45, 500,544.93 and 80,982

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Solution

The fourth proportional to 333,699.45, 500,544.93 and 80,982 is: 121,471.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,699.45 : 500,544.93 = 80,982 : x
  2. Step 2: Convert to fraction form
    333,699.45/500,544.93 = 80,982/x
  3. Step 3: Cross multiply
    333,699.45x = 500,544.93 × 80,982
  4. Step 4: Simplify right side
    333,699.45x = 40,535,129,521.26
  5. Step 5: Solve for x
    x = 40,535,129,521.26/333,699.45
  6. Step 6: Final answer
    x = 121,471.97

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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.