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Finding the Fourth Proportional to 68,064.30, 101,853.45 and 43,116.30

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Solution

The fourth proportional to 68,064.30, 101,853.45 and 43,116.30 is: 64,520.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,064.30 : 101,853.45 = 43,116.30 : x
  2. Step 2: Convert to fraction form
    68,064.30/101,853.45 = 43,116.30/x
  3. Step 3: Cross multiply
    68,064.30x = 101,853.45 × 43,116.30
  4. Step 4: Simplify right side
    68,064.30x = 4,391,543,906.24
  5. Step 5: Solve for x
    x = 4,391,543,906.24/68,064.30
  6. Step 6: Final answer
    x = 64,520.52

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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.