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Finding the Fourth Proportional to 141,852.87, 212,151.91 and 126,167.98

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Solution

The fourth proportional to 141,852.87, 212,151.91 and 126,167.98 is: 188,693.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,852.87 : 212,151.91 = 126,167.98 : x
  2. Step 2: Convert to fraction form
    141,852.87/212,151.91 = 126,167.98/x
  3. Step 3: Cross multiply
    141,852.87x = 212,151.91 × 126,167.98
  4. Step 4: Simplify right side
    141,852.87x = 26,766,777,937.84
  5. Step 5: Solve for x
    x = 26,766,777,937.84/141,852.87
  6. Step 6: Final answer
    x = 188,693.95

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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.