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Finding the Fourth Proportional to 141,346.50, 212,020.11 and 42,850.50

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Solution

The fourth proportional to 141,346.50, 212,020.11 and 42,850.50 is: 64,275.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,346.50 : 212,020.11 = 42,850.50 : x
  2. Step 2: Convert to fraction form
    141,346.50/212,020.11 = 42,850.50/x
  3. Step 3: Cross multiply
    141,346.50x = 212,020.11 × 42,850.50
  4. Step 4: Simplify right side
    141,346.50x = 9,085,167,723.56
  5. Step 5: Solve for x
    x = 9,085,167,723.56/141,346.50
  6. Step 6: Final answer
    x = 64,275.86

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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.