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Finding the Fourth Proportional to 61,748.62, 85,213.18 and 33,454.31

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Solution

The fourth proportional to 61,748.62, 85,213.18 and 33,454.31 is: 46,166.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,748.62 : 85,213.18 = 33,454.31 : x
  2. Step 2: Convert to fraction form
    61,748.62/85,213.18 = 33,454.31/x
  3. Step 3: Cross multiply
    61,748.62x = 85,213.18 × 33,454.31
  4. Step 4: Simplify right side
    61,748.62x = 2,850,748,139.81
  5. Step 5: Solve for x
    x = 2,850,748,139.81/61,748.62
  6. Step 6: Final answer
    x = 46,166.99

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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.