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Finding the Fourth Proportional to 61,900.44, 85,859.64 and 60,259.80

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Solution

The fourth proportional to 61,900.44, 85,859.64 and 60,259.80 is: 83,583.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,900.44 : 85,859.64 = 60,259.80 : x
  2. Step 2: Convert to fraction form
    61,900.44/85,859.64 = 60,259.80/x
  3. Step 3: Cross multiply
    61,900.44x = 85,859.64 × 60,259.80
  4. Step 4: Simplify right side
    61,900.44x = 5,173,884,734.47
  5. Step 5: Solve for x
    x = 5,173,884,734.47/61,900.44
  6. Step 6: Final answer
    x = 83,583.97

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.