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Finding the Fourth Proportional to 483,245.13, 724,892.70 and 123,419.34

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Solution

The fourth proportional to 483,245.13, 724,892.70 and 123,419.34 is: 185,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,245.13 : 724,892.70 = 123,419.34 : x
  2. Step 2: Convert to fraction form
    483,245.13/724,892.70 = 123,419.34/x
  3. Step 3: Cross multiply
    483,245.13x = 724,892.70 × 123,419.34
  4. Step 4: Simplify right side
    483,245.13x = 89,465,778,604.82
  5. Step 5: Solve for x
    x = 89,465,778,604.82/483,245.13
  6. Step 6: Final answer
    x = 185,135.40

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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.