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Finding the Fourth Proportional to 272,376.72, 375,888.89 and 149,883.11

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Solution

The fourth proportional to 272,376.72, 375,888.89 and 149,883.11 is: 206,843.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,376.72 : 375,888.89 = 149,883.11 : x
  2. Step 2: Convert to fraction form
    272,376.72/375,888.89 = 149,883.11/x
  3. Step 3: Cross multiply
    272,376.72x = 375,888.89 × 149,883.11
  4. Step 4: Simplify right side
    272,376.72x = 56,339,393,218.79
  5. Step 5: Solve for x
    x = 56,339,393,218.79/272,376.72
  6. Step 6: Final answer
    x = 206,843.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.