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Finding the Fourth Proportional to 163,728.51, 245,687.54 and 68,952.03

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Solution

The fourth proportional to 163,728.51, 245,687.54 and 68,952.03 is: 103,467.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,728.51 : 245,687.54 = 68,952.03 : x
  2. Step 2: Convert to fraction form
    163,728.51/245,687.54 = 68,952.03/x
  3. Step 3: Cross multiply
    163,728.51x = 245,687.54 × 68,952.03
  4. Step 4: Simplify right side
    163,728.51x = 16,940,654,283.95
  5. Step 5: Solve for x
    x = 16,940,654,283.95/163,728.51
  6. Step 6: Final answer
    x = 103,467.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.