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Finding the Fourth Proportional to 112,958.37, 169,329.87 and 38,039.96

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Solution

The fourth proportional to 112,958.37, 169,329.87 and 38,039.96 is: 57,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,958.37 : 169,329.87 = 38,039.96 : x
  2. Step 2: Convert to fraction form
    112,958.37/169,329.87 = 38,039.96/x
  3. Step 3: Cross multiply
    112,958.37x = 169,329.87 × 38,039.96
  4. Step 4: Simplify right side
    112,958.37x = 6,441,301,904.93
  5. Step 5: Solve for x
    x = 6,441,301,904.93/112,958.37
  6. Step 6: Final answer
    x = 57,023.68

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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.