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Finding the Fourth Proportional to 131,671.80, 197,503.26 and 52,764.84

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Solution

The fourth proportional to 131,671.80, 197,503.26 and 52,764.84 is: 79,145.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,671.80 : 197,503.26 = 52,764.84 : x
  2. Step 2: Convert to fraction form
    131,671.80/197,503.26 = 52,764.84/x
  3. Step 3: Cross multiply
    131,671.80x = 197,503.26 × 52,764.84
  4. Step 4: Simplify right side
    131,671.80x = 10,421,227,913.38
  5. Step 5: Solve for x
    x = 10,421,227,913.38/131,671.80
  6. Step 6: Final answer
    x = 79,145.48

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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.