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Finding the Fourth Proportional to 125,892.48, 188,750.40 and 55,733.76

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Solution

The fourth proportional to 125,892.48, 188,750.40 and 55,733.76 is: 83,561.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,892.48 : 188,750.40 = 55,733.76 : x
  2. Step 2: Convert to fraction form
    125,892.48/188,750.40 = 55,733.76/x
  3. Step 3: Cross multiply
    125,892.48x = 188,750.40 × 55,733.76
  4. Step 4: Simplify right side
    125,892.48x = 10,519,769,493.50
  5. Step 5: Solve for x
    x = 10,519,769,493.50/125,892.48
  6. Step 6: Final answer
    x = 83,561.54

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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.