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Finding the Fourth Proportional to 165,361.64, 248,043.80 and 53,042.02

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Solution

The fourth proportional to 165,361.64, 248,043.80 and 53,042.02 is: 79,563.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,361.64 : 248,043.80 = 53,042.02 : x
  2. Step 2: Convert to fraction form
    165,361.64/248,043.80 = 53,042.02/x
  3. Step 3: Cross multiply
    165,361.64x = 248,043.80 × 53,042.02
  4. Step 4: Simplify right side
    165,361.64x = 13,156,743,712.97
  5. Step 5: Solve for x
    x = 13,156,743,712.97/165,361.64
  6. Step 6: Final answer
    x = 79,563.46

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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.