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Finding the Fourth Proportional to 136,284.60, 204,645.60 and 92,107.20

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Solution

The fourth proportional to 136,284.60, 204,645.60 and 92,107.20 is: 138,308.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,284.60 : 204,645.60 = 92,107.20 : x
  2. Step 2: Convert to fraction form
    136,284.60/204,645.60 = 92,107.20/x
  3. Step 3: Cross multiply
    136,284.60x = 204,645.60 × 92,107.20
  4. Step 4: Simplify right side
    136,284.60x = 18,849,333,208.32
  5. Step 5: Solve for x
    x = 18,849,333,208.32/136,284.60
  6. Step 6: Final answer
    x = 138,308.61

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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.