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Finding the Fourth Proportional to 208,369.46, 312,572.68 and 58,610.99

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Solution

The fourth proportional to 208,369.46, 312,572.68 and 58,610.99 is: 87,921.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,369.46 : 312,572.68 = 58,610.99 : x
  2. Step 2: Convert to fraction form
    208,369.46/312,572.68 = 58,610.99/x
  3. Step 3: Cross multiply
    208,369.46x = 312,572.68 × 58,610.99
  4. Step 4: Simplify right side
    208,369.46x = 18,320,194,856.66
  5. Step 5: Solve for x
    x = 18,320,194,856.66/208,369.46
  6. Step 6: Final answer
    x = 87,921.69

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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.