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Finding the Fourth Proportional to 79,860.94, 119,756.32 and 29,906.00

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Solution

The fourth proportional to 79,860.94, 119,756.32 and 29,906.00 is: 44,845.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,860.94 : 119,756.32 = 29,906.00 : x
  2. Step 2: Convert to fraction form
    79,860.94/119,756.32 = 29,906.00/x
  3. Step 3: Cross multiply
    79,860.94x = 119,756.32 × 29,906.00
  4. Step 4: Simplify right side
    79,860.94x = 3,581,432,281.27
  5. Step 5: Solve for x
    x = 3,581,432,281.27/79,860.94
  6. Step 6: Final answer
    x = 44,845.86

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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.