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Finding the Fourth Proportional to 208,377.15, 312,529.33 and 58,581.88

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Solution

The fourth proportional to 208,377.15, 312,529.33 and 58,581.88 is: 87,862.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,377.15 : 312,529.33 = 58,581.88 : x
  2. Step 2: Convert to fraction form
    208,377.15/312,529.33 = 58,581.88/x
  3. Step 3: Cross multiply
    208,377.15x = 312,529.33 × 58,581.88
  4. Step 4: Simplify right side
    208,377.15x = 18,308,553,850.98
  5. Step 5: Solve for x
    x = 18,308,553,850.98/208,377.15
  6. Step 6: Final answer
    x = 87,862.58

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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.