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Finding the Fourth Proportional to 272,307.38, 375,782.09 and 149,797.11

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Solution

The fourth proportional to 272,307.38, 375,782.09 and 149,797.11 is: 206,718.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,307.38 : 375,782.09 = 149,797.11 : x
  2. Step 2: Convert to fraction form
    272,307.38/375,782.09 = 149,797.11/x
  3. Step 3: Cross multiply
    272,307.38x = 375,782.09 × 149,797.11
  4. Step 4: Simplify right side
    272,307.38x = 56,291,071,731.96
  5. Step 5: Solve for x
    x = 56,291,071,731.96/272,307.38
  6. Step 6: Final answer
    x = 206,718.87

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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.