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Finding the Fourth Proportional to 136,774.90, 205,141.82 and 43,268.50

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Solution

The fourth proportional to 136,774.90, 205,141.82 and 43,268.50 is: 64,896.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,774.90 : 205,141.82 = 43,268.50 : x
  2. Step 2: Convert to fraction form
    136,774.90/205,141.82 = 43,268.50/x
  3. Step 3: Cross multiply
    136,774.90x = 205,141.82 × 43,268.50
  4. Step 4: Simplify right side
    136,774.90x = 8,876,178,838.67
  5. Step 5: Solve for x
    x = 8,876,178,838.67/136,774.90
  6. Step 6: Final answer
    x = 64,896.26

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.