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Finding the Fourth Proportional to 85,442.88, 117,903.08 and 49,631.92

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Solution

The fourth proportional to 85,442.88, 117,903.08 and 49,631.92 is: 68,487.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,442.88 : 117,903.08 = 49,631.92 : x
  2. Step 2: Convert to fraction form
    85,442.88/117,903.08 = 49,631.92/x
  3. Step 3: Cross multiply
    85,442.88x = 117,903.08 × 49,631.92
  4. Step 4: Simplify right side
    85,442.88x = 5,851,756,234.31
  5. Step 5: Solve for x
    x = 5,851,756,234.31/85,442.88
  6. Step 6: Final answer
    x = 68,487.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.