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Finding the Fourth Proportional to 79,432.71, 119,076.05 and 34,425.84

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Solution

The fourth proportional to 79,432.71, 119,076.05 and 34,425.84 is: 51,607.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,432.71 : 119,076.05 = 34,425.84 : x
  2. Step 2: Convert to fraction form
    79,432.71/119,076.05 = 34,425.84/x
  3. Step 3: Cross multiply
    79,432.71x = 119,076.05 × 34,425.84
  4. Step 4: Simplify right side
    79,432.71x = 4,099,293,577.73
  5. Step 5: Solve for x
    x = 4,099,293,577.73/79,432.71
  6. Step 6: Final answer
    x = 51,607.12

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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.