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Finding the Fourth Proportional to 141,859.70, 212,820.69 and 42,027.71

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Solution

The fourth proportional to 141,859.70, 212,820.69 and 42,027.71 is: 63,050.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,859.70 : 212,820.69 = 42,027.71 : x
  2. Step 2: Convert to fraction form
    141,859.70/212,820.69 = 42,027.71/x
  3. Step 3: Cross multiply
    141,859.70x = 212,820.69 × 42,027.71
  4. Step 4: Simplify right side
    141,859.70x = 8,944,365,177.22
  5. Step 5: Solve for x
    x = 8,944,365,177.22/141,859.70
  6. Step 6: Final answer
    x = 63,050.79

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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.