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Finding the Fourth Proportional to 79,706.30, 119,428.22 and 55,693.04

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Solution

The fourth proportional to 79,706.30, 119,428.22 and 55,693.04 is: 83,447.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,706.30 : 119,428.22 = 55,693.04 : x
  2. Step 2: Convert to fraction form
    79,706.30/119,428.22 = 55,693.04/x
  3. Step 3: Cross multiply
    79,706.30x = 119,428.22 × 55,693.04
  4. Step 4: Simplify right side
    79,706.30x = 6,651,320,494.36
  5. Step 5: Solve for x
    x = 6,651,320,494.36/79,706.30
  6. Step 6: Final answer
    x = 83,447.86

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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.