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Finding the Fourth Proportional to 243,435.05, 335,882.80 and 141,399.88

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Solution

The fourth proportional to 243,435.05, 335,882.80 and 141,399.88 is: 195,098.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,435.05 : 335,882.80 = 141,399.88 : x
  2. Step 2: Convert to fraction form
    243,435.05/335,882.80 = 141,399.88/x
  3. Step 3: Cross multiply
    243,435.05x = 335,882.80 × 141,399.88
  4. Step 4: Simplify right side
    243,435.05x = 47,493,786,907.06
  5. Step 5: Solve for x
    x = 47,493,786,907.06/243,435.05
  6. Step 6: Final answer
    x = 195,098.39

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.