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Finding the Fourth Proportional to 68,431.30, 94,407.90 and 44,549.26

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Solution

The fourth proportional to 68,431.30, 94,407.90 and 44,549.26 is: 61,460.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,431.30 : 94,407.90 = 44,549.26 : x
  2. Step 2: Convert to fraction form
    68,431.30/94,407.90 = 44,549.26/x
  3. Step 3: Cross multiply
    68,431.30x = 94,407.90 × 44,549.26
  4. Step 4: Simplify right side
    68,431.30x = 4,205,802,083.15
  5. Step 5: Solve for x
    x = 4,205,802,083.15/68,431.30
  6. Step 6: Final answer
    x = 61,460.21

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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.