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Finding the Fourth Proportional to 93,234.80, 139,900.80 and 40,649.60

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Solution

The fourth proportional to 93,234.80, 139,900.80 and 40,649.60 is: 60,995.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,234.80 : 139,900.80 = 40,649.60 : x
  2. Step 2: Convert to fraction form
    93,234.80/139,900.80 = 40,649.60/x
  3. Step 3: Cross multiply
    93,234.80x = 139,900.80 × 40,649.60
  4. Step 4: Simplify right side
    93,234.80x = 5,686,911,559.68
  5. Step 5: Solve for x
    x = 5,686,911,559.68/93,234.80
  6. Step 6: Final answer
    x = 60,995.59

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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.