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Finding the Fourth Proportional to 78,963.54, 108,969.50 and 44,972.02

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Solution

The fourth proportional to 78,963.54, 108,969.50 and 44,972.02 is: 62,061.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,963.54 : 108,969.50 = 44,972.02 : x
  2. Step 2: Convert to fraction form
    78,963.54/108,969.50 = 44,972.02/x
  3. Step 3: Cross multiply
    78,963.54x = 108,969.50 × 44,972.02
  4. Step 4: Simplify right side
    78,963.54x = 4,900,578,782.03
  5. Step 5: Solve for x
    x = 4,900,578,782.03/78,963.54
  6. Step 6: Final answer
    x = 62,061.29

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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.