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Finding the Fourth Proportional to 321,355.16, 481,935.42 and 96,655.94

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Solution

The fourth proportional to 321,355.16, 481,935.42 and 96,655.94 is: 144,954.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,355.16 : 481,935.42 = 96,655.94 : x
  2. Step 2: Convert to fraction form
    321,355.16/481,935.42 = 96,655.94/x
  3. Step 3: Cross multiply
    321,355.16x = 481,935.42 × 96,655.94
  4. Step 4: Simplify right side
    321,355.16x = 46,581,921,039.39
  5. Step 5: Solve for x
    x = 46,581,921,039.39/321,355.16
  6. Step 6: Final answer
    x = 144,954.64

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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.