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Finding the Fourth Proportional to 93,004.70, 139,505.22 and 30,675.20

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Solution

The fourth proportional to 93,004.70, 139,505.22 and 30,675.20 is: 46,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,004.70 : 139,505.22 = 30,675.20 : x
  2. Step 2: Convert to fraction form
    93,004.70/139,505.22 = 30,675.20/x
  3. Step 3: Cross multiply
    93,004.70x = 139,505.22 × 30,675.20
  4. Step 4: Simplify right side
    93,004.70x = 4,279,350,524.54
  5. Step 5: Solve for x
    x = 4,279,350,524.54/93,004.70
  6. Step 6: Final answer
    x = 46,012.20

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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.