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Finding the Fourth Proportional to 58,103.60, 87,143.92 and 15,972.81

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Solution

The fourth proportional to 58,103.60, 87,143.92 and 15,972.81 is: 23,956.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,103.60 : 87,143.92 = 15,972.81 : x
  2. Step 2: Convert to fraction form
    58,103.60/87,143.92 = 15,972.81/x
  3. Step 3: Cross multiply
    58,103.60x = 87,143.92 × 15,972.81
  4. Step 4: Simplify right side
    58,103.60x = 1,391,933,066.33
  5. Step 5: Solve for x
    x = 1,391,933,066.33/58,103.60
  6. Step 6: Final answer
    x = 23,956.06

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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.