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Finding the Fourth Proportional to 61,919.66, 85,450.12 and 35,061.44

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Solution

The fourth proportional to 61,919.66, 85,450.12 and 35,061.44 is: 48,385.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,919.66 : 85,450.12 = 35,061.44 : x
  2. Step 2: Convert to fraction form
    61,919.66/85,450.12 = 35,061.44/x
  3. Step 3: Cross multiply
    61,919.66x = 85,450.12 × 35,061.44
  4. Step 4: Simplify right side
    61,919.66x = 2,996,004,255.37
  5. Step 5: Solve for x
    x = 2,996,004,255.37/61,919.66
  6. Step 6: Final answer
    x = 48,385.35

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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.