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Finding the Fourth Proportional to 273,401.71, 376,864.69 and 187,211.70

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Solution

The fourth proportional to 273,401.71, 376,864.69 and 187,211.70 is: 258,057.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,401.71 : 376,864.69 = 187,211.70 : x
  2. Step 2: Convert to fraction form
    273,401.71/376,864.69 = 187,211.70/x
  3. Step 3: Cross multiply
    273,401.71x = 376,864.69 × 187,211.70
  4. Step 4: Simplify right side
    273,401.71x = 70,553,479,824.31
  5. Step 5: Solve for x
    x = 70,553,479,824.31/273,401.71
  6. Step 6: Final answer
    x = 258,057.93

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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.