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Finding the Fourth Proportional to 141,889.92, 212,868.29 and 42,050.94

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Solution

The fourth proportional to 141,889.92, 212,868.29 and 42,050.94 is: 63,086.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,889.92 : 212,868.29 = 42,050.94 : x
  2. Step 2: Convert to fraction form
    141,889.92/212,868.29 = 42,050.94/x
  3. Step 3: Cross multiply
    141,889.92x = 212,868.29 × 42,050.94
  4. Step 4: Simplify right side
    141,889.92x = 8,951,311,690.69
  5. Step 5: Solve for x
    x = 8,951,311,690.69/141,889.92
  6. Step 6: Final answer
    x = 63,086.31

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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.