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Finding the Fourth Proportional to 333,489.29, 500,235.11 and 80,769.94

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Solution

The fourth proportional to 333,489.29, 500,235.11 and 80,769.94 is: 121,155.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,489.29 : 500,235.11 = 80,769.94 : x
  2. Step 2: Convert to fraction form
    333,489.29/500,235.11 = 80,769.94/x
  3. Step 3: Cross multiply
    333,489.29x = 500,235.11 × 80,769.94
  4. Step 4: Simplify right side
    333,489.29x = 40,403,960,869.26
  5. Step 5: Solve for x
    x = 40,403,960,869.26/333,489.29
  6. Step 6: Final answer
    x = 121,155.20

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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.