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Finding the Fourth Proportional to 208,747.79, 313,138.59 and 58,989.32

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Solution

The fourth proportional to 208,747.79, 313,138.59 and 58,989.32 is: 88,488.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,747.79 : 313,138.59 = 58,989.32 : x
  2. Step 2: Convert to fraction form
    208,747.79/313,138.59 = 58,989.32/x
  3. Step 3: Cross multiply
    208,747.79x = 313,138.59 × 58,989.32
  4. Step 4: Simplify right side
    208,747.79x = 18,471,832,489.86
  5. Step 5: Solve for x
    x = 18,471,832,489.86/208,747.79
  6. Step 6: Final answer
    x = 88,488.76

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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.