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Finding the Fourth Proportional to 61,748.40, 85,224.60 and 36,260.40

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Solution

The fourth proportional to 61,748.40, 85,224.60 and 36,260.40 is: 50,046.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,748.40 : 85,224.60 = 36,260.40 : x
  2. Step 2: Convert to fraction form
    61,748.40/85,224.60 = 36,260.40/x
  3. Step 3: Cross multiply
    61,748.40x = 85,224.60 × 36,260.40
  4. Step 4: Simplify right side
    61,748.40x = 3,090,278,085.84
  5. Step 5: Solve for x
    x = 3,090,278,085.84/61,748.40
  6. Step 6: Final answer
    x = 50,046.29

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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.