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Finding the Fourth Proportional to 321,991.73, 483,004.65 and 97,346.43

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Solution

The fourth proportional to 321,991.73, 483,004.65 and 97,346.43 is: 146,024.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,991.73 : 483,004.65 = 97,346.43 : x
  2. Step 2: Convert to fraction form
    321,991.73/483,004.65 = 97,346.43/x
  3. Step 3: Cross multiply
    321,991.73x = 483,004.65 × 97,346.43
  4. Step 4: Simplify right side
    321,991.73x = 47,018,778,715.95
  5. Step 5: Solve for x
    x = 47,018,778,715.95/321,991.73
  6. Step 6: Final answer
    x = 146,024.80

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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.