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Finding the Fourth Proportional to 136,256.73, 205,664.94 and 136,256.73

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Solution

The fourth proportional to 136,256.73, 205,664.94 and 136,256.73 is: 205,664.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,256.73 : 205,664.94 = 136,256.73 : x
  2. Step 2: Convert to fraction form
    136,256.73/205,664.94 = 136,256.73/x
  3. Step 3: Cross multiply
    136,256.73x = 205,664.94 × 136,256.73
  4. Step 4: Simplify right side
    136,256.73x = 28,023,232,200.05
  5. Step 5: Solve for x
    x = 28,023,232,200.05/136,256.73
  6. Step 6: Final answer
    x = 205,664.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.