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Finding the Fourth Proportional to 141,764.60, 212,675.70 and 48,279.80

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Solution

The fourth proportional to 141,764.60, 212,675.70 and 48,279.80 is: 72,429.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,764.60 : 212,675.70 = 48,279.80 : x
  2. Step 2: Convert to fraction form
    141,764.60/212,675.70 = 48,279.80/x
  3. Step 3: Cross multiply
    141,764.60x = 212,675.70 × 48,279.80
  4. Step 4: Simplify right side
    141,764.60x = 10,267,940,260.86
  5. Step 5: Solve for x
    x = 10,267,940,260.86/141,764.60
  6. Step 6: Final answer
    x = 72,429.51

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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.