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Finding the Fourth Proportional to 58,859.75, 87,735.15 and 54,135.83

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Solution

The fourth proportional to 58,859.75, 87,735.15 and 54,135.83 is: 80,693.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,859.75 : 87,735.15 = 54,135.83 : x
  2. Step 2: Convert to fraction form
    58,859.75/87,735.15 = 54,135.83/x
  3. Step 3: Cross multiply
    58,859.75x = 87,735.15 × 54,135.83
  4. Step 4: Simplify right side
    58,859.75x = 4,749,614,894.75
  5. Step 5: Solve for x
    x = 4,749,614,894.75/58,859.75
  6. Step 6: Final answer
    x = 80,693.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.