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Finding the Fourth Proportional to 202,354.02, 279,205.20 and 117,425.52

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Solution

The fourth proportional to 202,354.02, 279,205.20 and 117,425.52 is: 162,022.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,354.02 : 279,205.20 = 117,425.52 : x
  2. Step 2: Convert to fraction form
    202,354.02/279,205.20 = 117,425.52/x
  3. Step 3: Cross multiply
    202,354.02x = 279,205.20 × 117,425.52
  4. Step 4: Simplify right side
    202,354.02x = 32,785,815,796.70
  5. Step 5: Solve for x
    x = 32,785,815,796.70/202,354.02
  6. Step 6: Final answer
    x = 162,022.06

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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.