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Finding the Fourth Proportional to 333,884.72, 500,823.38 and 81,165.45

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Solution

The fourth proportional to 333,884.72, 500,823.38 and 81,165.45 is: 121,747.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,884.72 : 500,823.38 = 81,165.45 : x
  2. Step 2: Convert to fraction form
    333,884.72/500,823.38 = 81,165.45/x
  3. Step 3: Cross multiply
    333,884.72x = 500,823.38 × 81,165.45
  4. Step 4: Simplify right side
    333,884.72x = 40,649,555,211.13
  5. Step 5: Solve for x
    x = 40,649,555,211.13/333,884.72
  6. Step 6: Final answer
    x = 121,747.28

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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.