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Finding the Fourth Proportional to 124,958.60, 187,230.54 and 87,944.84

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Solution

The fourth proportional to 124,958.60, 187,230.54 and 87,944.84 is: 131,771.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,958.60 : 187,230.54 = 87,944.84 : x
  2. Step 2: Convert to fraction form
    124,958.60/187,230.54 = 87,944.84/x
  3. Step 3: Cross multiply
    124,958.60x = 187,230.54 × 87,944.84
  4. Step 4: Simplify right side
    124,958.60x = 16,465,959,883.41
  5. Step 5: Solve for x
    x = 16,465,959,883.41/124,958.60
  6. Step 6: Final answer
    x = 131,771.32

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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.