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Finding the Fourth Proportional to 125,402.77, 188,110.31 and 50,512.81

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Solution

The fourth proportional to 125,402.77, 188,110.31 and 50,512.81 is: 75,771.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,402.77 : 188,110.31 = 50,512.81 : x
  2. Step 2: Convert to fraction form
    125,402.77/188,110.31 = 50,512.81/x
  3. Step 3: Cross multiply
    125,402.77x = 188,110.31 × 50,512.81
  4. Step 4: Simplify right side
    125,402.77x = 9,501,980,348.07
  5. Step 5: Solve for x
    x = 9,501,980,348.07/125,402.77
  6. Step 6: Final answer
    x = 75,771.69

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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.