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Finding the Fourth Proportional to 68,441.52, 94,493.75 and 61,258.98

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Solution

The fourth proportional to 68,441.52, 94,493.75 and 61,258.98 is: 84,577.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,441.52 : 94,493.75 = 61,258.98 : x
  2. Step 2: Convert to fraction form
    68,441.52/94,493.75 = 61,258.98/x
  3. Step 3: Cross multiply
    68,441.52x = 94,493.75 × 61,258.98
  4. Step 4: Simplify right side
    68,441.52x = 5,788,590,435.08
  5. Step 5: Solve for x
    x = 5,788,590,435.08/68,441.52
  6. Step 6: Final answer
    x = 84,577.18

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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.