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Finding the Fourth Proportional to 208,574.67, 312,845.67 and 58,808.91

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Solution

The fourth proportional to 208,574.67, 312,845.67 and 58,808.91 is: 88,208.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,574.67 : 312,845.67 = 58,808.91 : x
  2. Step 2: Convert to fraction form
    208,574.67/312,845.67 = 58,808.91/x
  3. Step 3: Cross multiply
    208,574.67x = 312,845.67 × 58,808.91
  4. Step 4: Simplify right side
    208,574.67x = 18,398,112,850.92
  5. Step 5: Solve for x
    x = 18,398,112,850.92/208,574.67
  6. Step 6: Final answer
    x = 88,208.76

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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.