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Finding the Fourth Proportional to 106,399.81, 146,829.90 and 58,657.60

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Solution

The fourth proportional to 106,399.81, 146,829.90 and 58,657.60 is: 80,946.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,399.81 : 146,829.90 = 58,657.60 : x
  2. Step 2: Convert to fraction form
    106,399.81/146,829.90 = 58,657.60/x
  3. Step 3: Cross multiply
    106,399.81x = 146,829.90 × 58,657.60
  4. Step 4: Simplify right side
    106,399.81x = 8,612,689,542.24
  5. Step 5: Solve for x
    x = 8,612,689,542.24/106,399.81
  6. Step 6: Final answer
    x = 80,946.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.