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Finding the Fourth Proportional to 58,859.66, 87,735.01 and 54,135.74

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Solution

The fourth proportional to 58,859.66, 87,735.01 and 54,135.74 is: 80,693.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,859.66 : 87,735.01 = 54,135.74 : x
  2. Step 2: Convert to fraction form
    58,859.66/87,735.01 = 54,135.74/x
  3. Step 3: Cross multiply
    58,859.66x = 87,735.01 × 54,135.74
  4. Step 4: Simplify right side
    58,859.66x = 4,749,599,690.26
  5. Step 5: Solve for x
    x = 4,749,599,690.26/58,859.66
  6. Step 6: Final answer
    x = 80,693.63

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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.