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Finding the Fourth Proportional to 61,223.85, 91,748.16 and 34,874.15

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Solution

The fourth proportional to 61,223.85, 91,748.16 and 34,874.15 is: 52,261.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,223.85 : 91,748.16 = 34,874.15 : x
  2. Step 2: Convert to fraction form
    61,223.85/91,748.16 = 34,874.15/x
  3. Step 3: Cross multiply
    61,223.85x = 91,748.16 × 34,874.15
  4. Step 4: Simplify right side
    61,223.85x = 3,199,638,635.32
  5. Step 5: Solve for x
    x = 3,199,638,635.32/61,223.85
  6. Step 6: Final answer
    x = 52,261.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.