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Finding the Fourth Proportional to 55,983.40, 83,861.70 and 34,858.60

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Solution

The fourth proportional to 55,983.40, 83,861.70 and 34,858.60 is: 52,217.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,983.40 : 83,861.70 = 34,858.60 : x
  2. Step 2: Convert to fraction form
    55,983.40/83,861.70 = 34,858.60/x
  3. Step 3: Cross multiply
    55,983.40x = 83,861.70 × 34,858.60
  4. Step 4: Simplify right side
    55,983.40x = 2,923,301,455.62
  5. Step 5: Solve for x
    x = 2,923,301,455.62/55,983.40
  6. Step 6: Final answer
    x = 52,217.29

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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.