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Finding the Fourth Proportional to 79,683.10, 119,497.11 and 35,340.87

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Solution

The fourth proportional to 79,683.10, 119,497.11 and 35,340.87 is: 52,999.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,683.10 : 119,497.11 = 35,340.87 : x
  2. Step 2: Convert to fraction form
    79,683.10/119,497.11 = 35,340.87/x
  3. Step 3: Cross multiply
    79,683.10x = 119,497.11 × 35,340.87
  4. Step 4: Simplify right side
    79,683.10x = 4,223,131,829.89
  5. Step 5: Solve for x
    x = 4,223,131,829.89/79,683.10
  6. Step 6: Final answer
    x = 52,999.09

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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.