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Finding the Fourth Proportional to 333,261.29, 499,893.22 and 80,541.36

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Solution

The fourth proportional to 333,261.29, 499,893.22 and 80,541.36 is: 120,812.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,261.29 : 499,893.22 = 80,541.36 : x
  2. Step 2: Convert to fraction form
    333,261.29/499,893.22 = 80,541.36/x
  3. Step 3: Cross multiply
    333,261.29x = 499,893.22 × 80,541.36
  4. Step 4: Simplify right side
    333,261.29x = 40,262,081,300.21
  5. Step 5: Solve for x
    x = 40,262,081,300.21/333,261.29
  6. Step 6: Final answer
    x = 120,812.36

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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.