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Finding the Fourth Proportional to 321,597.81, 482,466.38 and 96,939.45

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Solution

The fourth proportional to 321,597.81, 482,466.38 and 96,939.45 is: 145,430.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,597.81 : 482,466.38 = 96,939.45 : x
  2. Step 2: Convert to fraction form
    321,597.81/482,466.38 = 96,939.45/x
  3. Step 3: Cross multiply
    321,597.81x = 482,466.38 × 96,939.45
  4. Step 4: Simplify right side
    321,597.81x = 46,770,025,035.99
  5. Step 5: Solve for x
    x = 46,770,025,035.99/321,597.81
  6. Step 6: Final answer
    x = 145,430.17

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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.