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Finding the Fourth Proportional to 222,499.20, 333,716.40 and 64,711.20

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Solution

The fourth proportional to 222,499.20, 333,716.40 and 64,711.20 is: 97,057.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,499.20 : 333,716.40 = 64,711.20 : x
  2. Step 2: Convert to fraction form
    222,499.20/333,716.40 = 64,711.20/x
  3. Step 3: Cross multiply
    222,499.20x = 333,716.40 × 64,711.20
  4. Step 4: Simplify right side
    222,499.20x = 21,595,188,703.68
  5. Step 5: Solve for x
    x = 21,595,188,703.68/222,499.20
  6. Step 6: Final answer
    x = 97,057.38

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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.