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Finding the Fourth Proportional to 74,654.89, 103,016.27 and 45,969.95

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Solution

The fourth proportional to 74,654.89, 103,016.27 and 45,969.95 is: 63,433.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,654.89 : 103,016.27 = 45,969.95 : x
  2. Step 2: Convert to fraction form
    74,654.89/103,016.27 = 45,969.95/x
  3. Step 3: Cross multiply
    74,654.89x = 103,016.27 × 45,969.95
  4. Step 4: Simplify right side
    74,654.89x = 4,735,653,153.55
  5. Step 5: Solve for x
    x = 4,735,653,153.55/74,654.89
  6. Step 6: Final answer
    x = 63,433.93

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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.