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Finding the Fourth Proportional to 68,669.54, 102,546.16 and 53,710.46

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Solution

The fourth proportional to 68,669.54, 102,546.16 and 53,710.46 is: 80,207.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,669.54 : 102,546.16 = 53,710.46 : x
  2. Step 2: Convert to fraction form
    68,669.54/102,546.16 = 53,710.46/x
  3. Step 3: Cross multiply
    68,669.54x = 102,546.16 × 53,710.46
  4. Step 4: Simplify right side
    68,669.54x = 5,507,801,424.83
  5. Step 5: Solve for x
    x = 5,507,801,424.83/68,669.54
  6. Step 6: Final answer
    x = 80,207.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.