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Finding the Fourth Proportional to 136,539.51, 204,735.08 and 61,571.90

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Solution

The fourth proportional to 136,539.51, 204,735.08 and 61,571.90 is: 92,324.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,539.51 : 204,735.08 = 61,571.90 : x
  2. Step 2: Convert to fraction form
    136,539.51/204,735.08 = 61,571.90/x
  3. Step 3: Cross multiply
    136,539.51x = 204,735.08 × 61,571.90
  4. Step 4: Simplify right side
    136,539.51x = 12,605,927,002.51
  5. Step 5: Solve for x
    x = 12,605,927,002.51/136,539.51
  6. Step 6: Final answer
    x = 92,324.39

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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.