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Finding the Fourth Proportional to 319,562.48, 479,361.76 and 82,898.88

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Solution

The fourth proportional to 319,562.48, 479,361.76 and 82,898.88 is: 124,353.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,562.48 : 479,361.76 = 82,898.88 : x
  2. Step 2: Convert to fraction form
    319,562.48/479,361.76 = 82,898.88/x
  3. Step 3: Cross multiply
    319,562.48x = 479,361.76 × 82,898.88
  4. Step 4: Simplify right side
    319,562.48x = 39,738,553,018.83
  5. Step 5: Solve for x
    x = 39,738,553,018.83/319,562.48
  6. Step 6: Final answer
    x = 124,353.00

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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.