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Finding the Fourth Proportional to 212,755.46, 319,134.21 and 62,998.58

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Solution

The fourth proportional to 212,755.46, 319,134.21 and 62,998.58 is: 94,498.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,755.46 : 319,134.21 = 62,998.58 : x
  2. Step 2: Convert to fraction form
    212,755.46/319,134.21 = 62,998.58/x
  3. Step 3: Cross multiply
    212,755.46x = 319,134.21 × 62,998.58
  4. Step 4: Simplify right side
    212,755.46x = 20,105,000,463.75
  5. Step 5: Solve for x
    x = 20,105,000,463.75/212,755.46
  6. Step 6: Final answer
    x = 94,498.17

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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.