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Finding the Fourth Proportional to 61,900.68, 85,493.28 and 41,722.74

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Solution

The fourth proportional to 61,900.68, 85,493.28 and 41,722.74 is: 57,624.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,900.68 : 85,493.28 = 41,722.74 : x
  2. Step 2: Convert to fraction form
    61,900.68/85,493.28 = 41,722.74/x
  3. Step 3: Cross multiply
    61,900.68x = 85,493.28 × 41,722.74
  4. Step 4: Simplify right side
    61,900.68x = 3,567,013,893.19
  5. Step 5: Solve for x
    x = 3,567,013,893.19/61,900.68
  6. Step 6: Final answer
    x = 57,624.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.