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Finding the Fourth Proportional to 61,855, 85,360.11 and 33,560.89

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Solution

The fourth proportional to 61,855, 85,360.11 and 33,560.89 is: 46,314.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,855 : 85,360.11 = 33,560.89 : x
  2. Step 2: Convert to fraction form
    61,855/85,360.11 = 33,560.89/x
  3. Step 3: Cross multiply
    61,855x = 85,360.11 × 33,560.89
  4. Step 4: Simplify right side
    61,855x = 2,864,761,262.10
  5. Step 5: Solve for x
    x = 2,864,761,262.10/61,855
  6. Step 6: Final answer
    x = 46,314.14

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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.