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Finding the Fourth Proportional to 69,683.60, 104,352.60 and 55,859.60

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Solution

The fourth proportional to 69,683.60, 104,352.60 and 55,859.60 is: 83,650.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,683.60 : 104,352.60 = 55,859.60 : x
  2. Step 2: Convert to fraction form
    69,683.60/104,352.60 = 55,859.60/x
  3. Step 3: Cross multiply
    69,683.60x = 104,352.60 × 55,859.60
  4. Step 4: Simplify right side
    69,683.60x = 5,829,094,494.96
  5. Step 5: Solve for x
    x = 5,829,094,494.96/69,683.60
  6. Step 6: Final answer
    x = 83,650.88

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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.