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Finding the Fourth Proportional to 272,988.96, 376,553.52 and 187,958.40

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Solution

The fourth proportional to 272,988.96, 376,553.52 and 187,958.40 is: 259,264.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,988.96 : 376,553.52 = 187,958.40 : x
  2. Step 2: Convert to fraction form
    272,988.96/376,553.52 = 187,958.40/x
  3. Step 3: Cross multiply
    272,988.96x = 376,553.52 × 187,958.40
  4. Step 4: Simplify right side
    272,988.96x = 70,776,397,133.57
  5. Step 5: Solve for x
    x = 70,776,397,133.57/272,988.96
  6. Step 6: Final answer
    x = 259,264.69

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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.